Properties of the Number 51455

Fifty-One Thousand Four Hundred Fifty-Five

Basics

Value: 51454 → 51455 → 51456

Parity: odd

Prime: No

Previous Prime: 51449

Next Prime: 51461

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 41 × 251

Divisors: 1, 5, 41, 205, 251, 1255, 10291, 51455

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100100011111111

Octal: 144377

Duodecimal: 2593B

Hexadecimal: c8ff

Square: 2647617025

Square Root: 226.83694584436637

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

Number of 5-cycles in the n-polygon diagonal intersection graph. A300553

Numbers k such that φ(k) and σ(k) are both perfect squares. A67781

a(n) = 5*(3·n+1)*(9·n+8)/2 (n>=0). A304508

Numbers n such that φ(n), ψ(n) and σ(n) are simultaneously perfect squares. A301867

(Terms in A029623)/2. A51455