Properties of the Number 72975

Seventy-Two Thousand Nine Hundred Seventy-Five

Basics

Value: 72974 → 72975 → 72976

Parity: odd

Prime: No

Previous Prime: 72973

Next Prime: 72977

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 ² × 7 × 139

Divisors: 1, 3, 5, 7, 15, 21, 25, 35, 75, 105

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001110100001111

Octal: 216417

Duodecimal: 36293

Hexadecimal: 11d0f

Square: 5325350625

Square Root: 270.138853184802

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) = (2·n - 1)*(7·n² - 7·n + 6)/6. A63490

a(n) = (1/2)*A014431(n+2). A25235

Iterates of A234742, starting from value a(0) = 455, with a(1) = A234742(a(0)), a(2) = A234742(a(1)), etc. A260735

Generalized Motzkin paths with no hills and 3-horizontal steps. A99170

Smallest prime obtained by appending a number with identical digits to n or 0 if no such prime exists. A256481

a(n) = 2ⁿ*binomial(3·n,n)*(3·n+1). A72975