Properties of the Number 65513

Sixty-Five Thousand Five Hundred Thirteen

Basics

Value: 65512 → 65513 → 65514

Parity: odd

Prime: No

Previous Prime: 65497

Next Prime: 65519

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7 ³ × 191

Divisors: 1, 7, 49, 191, 343, 1337, 9359, 65513

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1111111111101001

Octal: 177751

Duodecimal: 31AB5

Hexadecimal: ffe9

Square: 4291953169

Square Root: 255.9550741829511

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

Number of prime pairs below 10ⁿ having a difference of 12. A93741

Positive numbers k such that -k, -(k + 1), -(k + 2), and -(k + 3) are 4 consecutive negative negabinary-Niven numbers (A331728). A331825

a(n) = 4ⁿ - 3·n + 1. A175976

Number of endofunctions of [n] with a cycle a->b->c->a and for all·in [n], some iterate f^k(x)=a. A65513

The least k such that A063994(k) = ∏_{primes p dividing k} gcd(p-1, k-1) = n, or 0 if there's no such k. A64234