Properties of the Number 72545

Seventy-Two Thousand Five Hundred Forty-Five

Basics

Value: 72544 → 72545 → 72546

Parity: odd

Prime: No

Previous Prime: 72533

Next Prime: 72547

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 11 × 1319

Divisors: 1, 5, 11, 55, 1319, 6595, 14509, 72545

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10001101101100001

Octal: 215541

Duodecimal: 35B95

Hexadecimal: 11b61

Square: 5262777025

Square Root: 269.34179029627023

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(0) = 1, a(n) for n > 0 is the smallest number > a(n-1) such that a(n)-a(k) is nonprime for 0 <= k < n. A72545

Number of nX2 0..3 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors. A231694