Properties of the Number 51517

Fifty-One Thousand Five Hundred Seventeen

Basics

Value: 51516 → 51517 → 51518

Parity: odd

Prime: Yes

Previous Prime: 51511

Next Prime: 51521

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 51517

Divisors: 1, 51517

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100100100111101

Octal: 144475

Duodecimal: 25991

Hexadecimal: c93d

Square: 2654001289

Square Root: 226.97356674291393

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 of the form 2·n²+6·n+1. A176549

Primes having only {1, 5, 7} as digits. A260828

Primes that are palindromic in base 6. A29974

Primes formed by concatenating k, k, and 7. A210513

"CGK" (necklace, element, unlabeled) transform of 2,1,1,1,... A32157

n-th prime p such that (p+n)²+n is prime but (p+j)²+j is not prime for all 0<j<n. A238663

Smallest prime p such that p - floor(sqrt(p))² = n². A242991

Primes that are sums of a sequence of consecutive terms of A006094. A340537

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 21. A31609

Triangles of perimeter 2n having integer sides and area. A51517