Properties of the Number 65644

Sixty-Five Thousand Six Hundred Forty-Four

Basics

Value: 65643 → 65644 → 65645

Parity: even

Prime: No

Previous Prime: 65633

Next Prime: 65647

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 16411

Divisors: 1, 2, 4, 16411, 32822, 65644

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000000001101100

Octal: 200154

Duodecimal: 31BA4

Hexadecimal: 1006c

Square: 4309134736

Square Root: 256.2108506679606

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

Irregular triangle T(n,k) = 2^floor(n/3-k) * nextprime(2^{n-2*(floor(n/3}-k))), with k = 0..floor(n/3)-1. A384875

a(n) is the smallest integer k such that floor((3/2)^k)/floor((3/2)ⁿ) is an integer greater than 1. A65644