Properties of the Number -81055

Eighty-One Thousand Fifty-Five

Basics

Value: -81056 → -81055 → -81054

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 13 × 29 × 43

Divisors: 1, 5, 13, 29, 43, 65, 145, 215, 377, 559

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011110010011111

Octal: -236237

Duodecimal: -3AAA7

Hexadecimal: -13c9f

Square: 6569913025

Square Root: 284.7015981690303

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

-5-Knödel numbers. A225509

Array read by antidiagonals: T(m,n) = number of minimal total dominating sets in the grid graph P_m X P_n. A303118

Triangle T(n,k) (n >= 1, 0 <= k <= n-1) read by rows: number of distinct permutations after k steps of the "first transposition" algorithm. A345462

Numbers k such that the sum of the numbers from 1 to k and that from 1 to k+1 share the same sum of divisors. A375819

Numbers k such that s(k) = s(k+2), where s(k) is the sum of odd divisors of k (A000593). A387920