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What is the longest palindrome?

What is the longest palindrome?

tattarrattat The longest palindrome in English is often considered tattarrattat, coined by James Joyce in his 1922 Ulysses to imitate the sound of a knock on the door. That's 12 letters.

What are some good palindromes?

The most familiar palindromes in English are character-unit palindromes. The characters read the same backward as forward. Some examples of palindromic words are redivider, deified, civic, radar, level, rotor, kayak, reviver, racecar, madam, and refer.

What is palindrome and example?

A palindrome is a word, phrase, or sentence reads the same backward or forward--such as Madam, I'm Adam. Semordnilaps (the word palindromes in reverse) are words that spell other words when spelled backwards (for example, star/rats, drawer/reward).

What are palindrome pairs?

Palindrome Pairs - LeetCode. Discuss (456) 336. Palindrome Pairs. Given a list of unique words, return all the pairs of the distinct indices (i, j) in the given list, so that the concatenation of the two words words[i] + words[j] is a palindrome.

What words are Spelt the same backwards?

A word, phrase or sentence that is the same both backwards and forwards is called a palindrome. The name palindrome comes from the Greek words 'again' (palin) and 'to run' (drom).

Is the number 1 a palindrome?

. The first few palindromic numbers are therefore are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 33, 44, 55, 66, 77, 88, 99, 101, 111, 121, ... (OEIS A002113).

What words make words backwards?

17 Words That Mean Something Totally Different When Spelled Backwards

1. " Desserts" / "Stressed" ← Slide →
2. " Live" / "Evil" ← Slide →
3. " Knits" / "Stink" ← Slide →
4. " Sports" / "Strops" ← Slide →
5. " Regal" / "Lager" ← Slide →
6. " Pupils" / "Slipup" ← Slide →
7. " Raw" / "War" ← Slide →
8. " Smart" / "Trams"

What is a palindrome phrase?

What is a palindrome? According to The Oxford English Dictionary the word is based on Greek root words meaning “back” and “running.” Palindromes are words or phrases that read the same backward and forward, letter for letter, number for number, or word for word.

What is the meaning palindromic?

: a word, phrase, sentence, or number that reads the same backward or forward "Step on no pets" is a palindrome. palindrome. noun. pal·in·drome | \ ˈpal-ən-ˌdrōm \

Is palindrome a number?

A palindromic number (also known as a numeral palindrome or a numeric palindrome) is a number (such as 16461) that remains the same when its digits are reversed. In other words, it has reflectional symmetry across a vertical axis. ... The palindromic primes are 2, 3, 5, 7, 11, 101, 131, 151, …

What is heaven spelled backwards?

Nevaeh Nevaeh is "Heaven" spelled backward. The name has hit a cultural nerve with its religious overtones and creative twist.

What does Semordnilap mean?

Palindromes Semordnilap A palindrome is a word or phrase that is the same forwards and backwards, but a semordnilap ("palindromes" backwards) is a word that becomes a different word when read backwards.

Is 11111 a palindrome number?

Palindromic numbers can be considered in numeral systems other than decimal. For example, the binary palindromic numbers are: 0, 1, 11, 101, 111, 1001, 1111, 10001, 10101, 11011, 11111, 100001, ...

Why is 28 the perfect number?

A number is perfect if all of its factors, including 1 but excluding itself, perfectly add up to the number you began with. 6, for example, is perfect, because its factors — 3, 2, and 1 — all sum up to 6. 28 is perfect too: 14, 7, 4, 2, and 1 add up to 28.

What is boyfriend spelled backwards?

you ever noticed that "boyfriend" spelled backwards is "niggasaintshit" that's crazy.

What words spell backwards backwards?

A palindrome is a word or phrase that reads the same whether you spell it forwards or backward: "kayak," "madam," "racecar," and "refer" are some examples.

What words are palindromes?

Examples of Single-Word Palindromes

Anna.
civic.
kayak.
level.
madam.
mom.
noon.
racecar.

Is 101 a palindrome?

The first few palindromic numbers are therefore are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 33, 44, 55, 66, 77, 88, 99, 101, 111, 121, ... (OEIS A002113). The number of palindromic numbers less than a given number are illustrated in the plot above.

What is a palindrome in genetics?

Abstract. A palindrome in DNA is like a palindrome in language, but when read backwards, it is a complement of the forward sequence; effectively, the two halves of a sequence complement each other from its midpoint like in a double strand of DNA.

Are palindromes lucky?

Some cultures believe palindrome dates to be lucky. Which is why many people choose these dates for wedding celebrations. It also looks attractive to have the unique pattern of numbers appear on an invitation that's a lifetime keepsake; dates such as 02.02. 2020 or were very popular dates for nuptials!