Properties of the Number 51519

Fifty-One Thousand Five Hundred Nineteen

Basics

Value: 51518 → 51519 → 51520

Parity: odd

Prime: No

Previous Prime: 51517

Next Prime: 51521

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 13 × 1321

Divisors: 1, 3, 13, 39, 1321, 3963, 17173, 51519

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100100111111

Octal: 144477

Duodecimal: 25993

Hexadecimal: c93f

Square: 2654207361

Square Root: 226.97797249953572

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

Reflected tetranacci numbers A073817. A74058

Number of partitions of 5n such that cn(1,5) = cn(4,5) <= cn(0,5) < cn(2,5) = cn(3,5). A36885

a(n) = a(n-1) - a(n-2) + a(n-3) + a(n-4), a(0)=4, a(1)=1, a(2)=-1, a(3)=1. A73937

Numbers n such that A166133(n) sets a new record and also satisfies A166133(n)=A166133(n-1)²-1. A256422

Decimal part of n^1/11 starts with a 'nine digits' anagram. A34286

Exactly n integer-sided triangles of perimeter a(n) have integer area. A51519