Properties of the Number 51489

Fifty-One Thousand Four Hundred Eighty-Nine

Basics

Value: 51488 → 51489 → 51490

Parity: odd

Prime: No

Previous Prime: 51487

Next Prime: 51503

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 1907

Divisors: 1, 3, 9, 27, 1907, 5721, 17163, 51489

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1100100100100001

Octal: 144441

Duodecimal: 25969

Hexadecimal: c921

Square: 2651117121

Square Root: 226.91187716820818

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

a(n) = -a(n-1) - a(n-2) + a(n-3), a(0)=0, a(1)=0, a(2)=1. A57597

Numbers that are divisible by the product of their digits in primorial base representation. A341433

Numbers k such that 4·10^k + 87 is prime. A273097

a(n) = nⁿ⁺² + (n+2)ⁿ. A51489

Number of (n+2)X(4+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 4. A252061