Properties of the Number 51631

Fifty-One Thousand Six Hundred Thirty-One

Basics

Value: 51630 → 51631 → 51632

Parity: odd

Prime: Yes

Previous Prime: 51613

Next Prime: 51637

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 51631

Divisors: 1, 51631

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100110101111

Octal: 144657

Duodecimal: 25A67

Hexadecimal: c9af

Square: 2665760161

Square Root: 227.22455853186293

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

List of Ormiston prime pairs. A72274

Numbers k such that 7^k + k⁷ - 1 is prime. A215445

Primes for which the smallest positive primitive root is odd and nonprime. A70269

Primes with 15 as smallest positive primitive root. A61328

Prime sequence overlaying the central digits of prime numbers. If possible, the value is greater than the previous one. Zero if no such embedding is possible. A133781

a(n) = smallest prime q > a(n-1) such that 2·prime(n)*q^prime(n)+1 is also prime. A225747

Numbers having four 7's in base 9. A43484

Triangle formed using Pascal's rule except begin and end n-th row with n-1. A51631