Properties of the Number 72544

Seventy-Two Thousand Five Hundred Forty-Four

Basics

Value: 72543 → 72544 → 72545

Parity: even

Prime: No

Previous Prime: 72533

Next Prime: 72547

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ⁵ × 2267

Divisors: 1, 2, 4, 8, 16, 32, 2267, 4534, 9068, 18136

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001101101100000

Octal: 215540

Duodecimal: 35B94

Hexadecimal: 11b60

Square: 5262631936

Square Root: 269.3399339125188

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(1) = 1; for n > 1, a(n) = σ((2ⁿ)-1) - σ((2^n-1)-1), where σ is A000203, the sum of divisors. A329890

Quotients obtained when σ(k) divides antisigma(k) with k = A076617(n), σ (A000203) is the sum of divisors function and antisigma (A024816) is the sum of the non-divisors of n less than n function. A353000

Numbers whose smallest decimal digit is also the initial digit. A72544