Properties of the Number 81376

Eighty-One Thousand Three Hundred Seventy-Six

Basics

Value: 81375 → 81376 → 81377

Parity: even

Prime: No

Previous Prime: 81373

Next Prime: 81401

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ⁵ × 2543

Divisors: 1, 2, 4, 8, 16, 32, 2543, 5086, 10172, 20344

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011110111100000

Octal: 236740

Duodecimal: 3B114

Hexadecimal: 13de0

Square: 6622053376

Square Root: 285.2647892748069

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 regions among all distinct circles that can be constructed from n equally spaced points along a line using only a compass. A359253

Triangle read by rows: Number of 2n-step self-avoiding walks on diamond lattice ending at point with x = 2k. A227715

Number of 2n-step self-avoiding walks on diamond lattice ending at point with x = 2. A1397

Number of unlabeled balanced rooted semi-identity trees with 2n-1 nodes and depth n. A306274

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 1), (0, 0, -1), (0, 1, 1), (1, 0, 1)}. A150184

a(n) is the least number such that A067003(a(n)) = n. A81376