Properties of the Number 72122

Seventy-Two Thousand One Hundred Twenty-Two

Basics

Value: 72121 → 72122 → 72123

Parity: even

Prime: No

Previous Prime: 72109

Next Prime: 72139

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 36061

Divisors: 1, 2, 36061, 72122

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 10001100110111010

Octal: 214672

Duodecimal: 358A2

Hexadecimal: 119ba

Square: 5201582884

Square Root: 268.55539465815986

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

Retrograde trajectory of 11 under map n -> A132988(n). A132991

Numbers n such that n² = a² + b⁵ (with integers a, b > 0) and gcd(a, b, n) = 1. A293284

Numbers with 12 odd integers in their Collatz (or 3x+1) trajectory. A72122