Properties of the Number 72152

Seventy-Two Thousand One Hundred Fifty-Two

Basics

Value: 72151 → 72152 → 72153

Parity: even

Prime: No

Previous Prime: 72139

Next Prime: 72161

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 29 × 311

Divisors: 1, 2, 4, 8, 29, 58, 116, 232, 311, 622

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001100111011000

Octal: 214730

Duodecimal: 35908

Hexadecimal: 119d8

Square: 5205911104

Square Root: 268.6112432494217

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

Iccanobirt numbers (12 of 15): a(n) = R(R(a(n-1)) + a(n-2) + a(n-3)), where R is the digit reversal function A004086. A102122

G.f. satisfies A(x) = exp( ∑_k>=1 A(x^k) * x^k/(k * (1 + 2·x^k)) ). A363580

a(n) = one-half of the number of cells in the central rectangle of the graph described in row 2n+1 of A333288. A337640

Coordination sequence for VPl-5 structure with respect to node (X) where 18-gon and two squares meet. A72152

Square array read by antidiagonals downwards: T(n,k) = number of linear extensions of the North-East rectangular partial order NE_n,k that avoid the pattern 123. A284731