Properties of the Number 51115

Fifty-One Thousand One Hundred Fifteen

Basics

Value: 51114 → 51115 → 51116

Parity: odd

Prime: No

Previous Prime: 51109

Next Prime: 51131

Digit Sum: 13

Digital Root: 4

Palindrome: Yes

Factorization: 5 × 10223

Divisors: 1, 5, 10223, 51115

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100011110101011

Octal: 143653

Duodecimal: 256B7

Hexadecimal: c7ab

Square: 2612743225

Square Root: 226.0862667213557

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

Numbers that are palindromic and divisible by 5. A43040

Multiples of 5 in which there is no common digit in successive terms. A83493

Palindromic Smith numbers. A98834

a(n) = neg(M(n)), where M(n) is the n X n circulant matrix with (row 1) = (F(2), F(3), ..., F(n+1)), where F = A000045 (Fibonacci numbers), and neg(M(n)) is the negative part of the determinant of M(n); see A380661. A384595

Palindromes whose digits do not appear in previous term. A30285

a(n) = ceiling(A117791(n)/2). A173696

Expansion of 1/(1 - x - 4·x² + 4·x³ - 2·x⁴). A175713

Number of monotone Boolean functions of n variables with 7 mincuts. A51115