Properties of the Number 72140

Seventy-Two Thousand One Hundred Forty

Basics

Value: 72139 → 72140 → 72141

Parity: even

Prime: No

Previous Prime: 72139

Next Prime: 72161

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 5 × 3607

Divisors: 1, 2, 4, 5, 10, 20, 3607, 7214, 14428, 18035

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001100111001100

Octal: 214714

Duodecimal: 358B8

Hexadecimal: 119cc

Square: 5204179600

Square Root: 268.58890520645116

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 (n+4)X7 binary arrays with every 5X5 subblock commuting with each horizontal and vertical neighbor 5X5 subblock. A186603

Number of 2 X n 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4. A240285

The period length of the 'Reverse and Subtract' trajectory of n is greater than 1. A72140