Properties of the Number -81395

Eighty-One Thousand Three Hundred Ninety-Five

Basics

Value: -81396 → -81395 → -81394

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 × 73 × 223

Divisors: 1, 5, 73, 223, 365, 1115, 16279, 81395

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011110111110011

Octal: -236763

Duodecimal: -3B12B

Hexadecimal: -13df3

Square: 6625146025

Square Root: 285.29808972371336

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 integer partitions of n with non-biquanimous multiplicities. A371840

The five digits of a(n) and their four successive absolute first differences are all distinct. A365257

a(n) = s(1)s(n) + s(2)s(n-1) + ... + s(k)s(n-k+1), where k = [ n/2 ] and s = (Fibonacci numbers). A25078

a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Fibonacci numbers), t = (F(2), F(3), F(4), ...). A25082

Numbers whose base-5 representation has exactly 8 runs. A43608