Properties of the Number 64579

Sixty-Four Thousand Five Hundred Seventy-Nine

Basics

Value: 64578 → 64579 → 64580

Parity: odd

Prime: Yes

Previous Prime: 64577

Next Prime: 64591

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 64579

Divisors: 1, 64579

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111110001000011

Octal: 176103

Duodecimal: 31457

Hexadecimal: fc43

Square: 4170447241

Square Root: 254.12398548739944

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Primes that are congruent to -1 mod n, where n is the index of the prime. A52013

Denominators of upper primes-only best approximates (POBAs) to sqrt(8); see Comments. A265793

Primes p such that π(p) divides p-1 and/or p+1, where π(p) is the number of primes <= p. A162567

Odd numbers n for which the number of iterations to reach the largest equals number of iterations to reach 1 from the largest in Collatz (3x+1) trajectory of n. A224533

Primes p such that the p-1 digits of the ternary (base 3) expansion of k/p (for k=1,2,3,...,p-1) fit into the k-th row of a magic square grid of order p-1. A96660

a(n) = position of the first occurrence of n in A245714. A245723

Primes 2·p*q-2·q*r+r·s where p,q,r,s are consecutive primes. A341937

Numbers n such that 121·2ⁿ-1 is a prime. A50586

Primes which become squares when the digits are rotated once to the left. A234926

Primes obtained by merging 5 successive digits in the decimal expansion of sqrt(2) + sqrt(3) + sqrt(5). A241221