Properties of the Number 81983

Eighty-One Thousand Nine Hundred Eighty-Three

Basics

Value: 81982 → 81983 → 81984

Parity: odd

Prime: No

Previous Prime: 81973

Next Prime: 82003

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 11 × 29 × 257

Divisors: 1, 11, 29, 257, 319, 2827, 7453, 81983

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100000000111111

Octal: 240077

Duodecimal: 3B53B

Hexadecimal: 1403f

Square: 6721212289

Square Root: 286.3267364393343

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

Primes p such that p-1 is divisible by every nonzero digit of p. A81983

Table read by antidiagonals: T(n,k) (n >= 3, k >= 1) is the number of vertices formed in a regular n-gon by straight line segments when connecting the n corner vertices to the points dividing the sides into k equal parts. A354544