Properties of the Number 72170

Seventy-Two Thousand One Hundred Seventy

Basics

Value: 72169 → 72170 → 72171

Parity: even

Prime: No

Previous Prime: 72169

Next Prime: 72173

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 5 × 7 × 1031

Divisors: 1, 2, 5, 7, 10, 14, 35, 70, 1031, 2062

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001100111101010

Octal: 214752

Duodecimal: 35922

Hexadecimal: 119ea

Square: 5208508900

Square Root: 268.64474683120085

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) = 11·3ⁿ-1. A198646

a(n) is the least m such that A341284(m) = 2·n*prime(m+1) - prime(m). A342027

a(n) = 11·9ⁿ-1. A198968

Number of nonnegative integers with property that their base 10/7 expansion has n digits. A245431

Square array T(n,k) (n >= 0, k >= 2) read by antidiagonals, where T(n,k) is the number of ways of writing n as ∑_i>=0 c_i 2ⁱ, c_i in {0,1,...,k-1}. A72170