Properties of the Number -89645

Eighty-Nine Thousand Six Hundred Forty-Five

Basics

Value: -89646 → -89645 → -89644

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 5 × 17929

Divisors: 1, 5, 17929, 89645

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10101111000101101

Octal: -257055

Duodecimal: -43A65

Hexadecimal: -15e2d

Square: 8036226025

Square Root: 299.4077487307234

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

a(n) = ∑_{k=0..floor(n/2)} T(n,k) * T(n,k+1), with T given by A026009. A27288

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 20. A31608