Properties of the Number 72991

Seventy-Two Thousand Nine Hundred Ninety-One

Basics

Value: 72990 → 72991 → 72992

Parity: odd

Prime: No

Previous Prime: 72977

Next Prime: 72997

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 47 × 1553

Divisors: 1, 47, 1553, 72991

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001110100011111

Octal: 216437

Duodecimal: 362A7

Hexadecimal: 11d1f

Square: 5327686081

Square Root: 270.16846596151817

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

Partial sums of A255743. A255764

Triangle read by rows: T(n,k) is number of paths from (0,0) to (3n,0) that stay in the first quadrant (but may touch the horizontal axis), consisting of steps u=(2,1), U=(1,2), or d=(1,-1) and having k U=(1,2) steps among the steps leading to the first d step. A108441

Numbers k such that k+x+y is a perfect cube, where·and y are the two cubes nearest to k. A238599

Numbers 1 through 10 in alphabetical order. A72991