Properties of the Number 72580

Seventy-Two Thousand Five Hundred Eighty

Basics

Value: 72579 → 72580 → 72581

Parity: even

Prime: No

Previous Prime: 72577

Next Prime: 72613

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 × 19 × 191

Divisors: 1, 2, 4, 5, 10, 19, 20, 38, 76, 95

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001101110000100

Octal: 215604

Duodecimal: 36004

Hexadecimal: 11b84

Square: 5267856400

Square Root: 269.40675566882135

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 (w,x,y,z) with all terms in {1,...,n} and median<mean. A212135

Numbers k for which φ(k) = φ(k+1) - φ(k-1). A76529

Numbers k such that A075255(k) is the square of a prime. A386954

A007318² * A007248. A134443

a(n) = A000040(A072577(n)). A72580