Properties of the Number 81994

Eighty-One Thousand Nine Hundred Ninety-Four

Basics

Value: 81993 → 81994 → 81995

Parity: even

Prime: No

Previous Prime: 81973

Next Prime: 82003

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 × 11 × 3727

Divisors: 1, 2, 11, 22, 3727, 7454, 40997, 81994

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100000001001010

Octal: 240112

Duodecimal: 3B54A

Hexadecimal: 1404a

Square: 6723016036

Square Root: 286.34594461944107

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 partitions of n such that (maximal multiplicity of parts) = (multiplicity of the least part). A240303

a(n) = cpg(3, n) + cpg(4, n) + ... + cpg(n, n) where cpg(m, n) is the n-th m-th-order centered polygonal number. A257052

Triangle read by rows in which the n-th row contains n numbers not occurring earlier such that every entry is coprime to all the members of the row and column it belongs. A81994