Properties of the Number 81378

Eighty-One Thousand Three Hundred Seventy-Eight

Basics

Value: 81377 → 81378 → 81379

Parity: even

Prime: No

Previous Prime: 81373

Next Prime: 81401

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 11 × 137

Divisors: 1, 2, 3, 6, 9, 11, 18, 22, 27, 33

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110111100010

Octal: 236742

Duodecimal: 3B116

Hexadecimal: 13de2

Square: 6622378884

Square Root: 285.268294768276

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

Consecutive states of the linear congruential pseudo-random number generator (1093·s + 18257) mod 86436 when started at s=1. A385340

Numbers k for which the sums of prime factors (ignoring multiplicity) of σ(k) and φ(k) are equal but the sets of prime factors of σ and φ are different. A81378