Properties of the Number 72185

Seventy-Two Thousand One Hundred Eighty-Five

Basics

Value: 72184 → 72185 → 72186

Parity: odd

Prime: No

Previous Prime: 72173

Next Prime: 72211

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 14437

Divisors: 1, 5, 14437, 72185

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 10001100111111001

Octal: 214771

Duodecimal: 35935

Hexadecimal: 119f9

Square: 5210674225

Square Root: 268.6726632912251

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 vertices among all distinct circles that can be constructed from a point on the origin and n equally spaced points on each of the +x,-x,+y,-y coordinates axes using only a compass. A354605

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 28. A31616

"AGK" (ordered, elements, unlabeled) transform of 1,2,3,4... A32025

Primes p = x1x2x3...xn in base 10 such that x1^p1 + x2^p2 + x3^p3 + ... + xn^pn is a prime, where pn is the n-th prime. A72185