Properties of the Number -82005

Eighty-Two Thousand Five

Basics

Value: -82006 → -82005 → -82004

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 7 × 11 × 71

Divisors: 1, 3, 5, 7, 11, 15, 21, 33, 35, 55

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -10100000001010101

Octal: -240125

Duodecimal: -3B559

Hexadecimal: -14055

Square: 6724820025

Square Root: 286.3651515111432

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 hierarchical ordered partitions of partitions. A141199

Odd unitary abundant numbers. A129485

Odd squarefree abundant numbers. A112643

Primitive, odd, squarefree abundant numbers. A249263

Numbers n such that φ(n) = φ(n+7), with Euler's totient function φ = A000010. A179189

Sums of 5 distinct powers of 5. A38477

a(n) = (11·n + 4)*C(n+3, 3)/4. A55268

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 195", based on the 5-celled von Neumann neighborhood. A279751

Odd numbers k such that A360522(k) > 2·k. A360526

Odd non-coreful abundant numbers: the odd terms of A308127. A339938