Properties of the Number -85660

Eighty-Five Thousand Six Hundred Sixty

Basics

Value: -85661 → -85660 → -85659

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 5 × 4283

Divisors: 1, 2, 4, 5, 10, 20, 4283, 8566, 17132, 21415

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -10100111010011100

Octal: -247234

Duodecimal: -416A4

Hexadecimal: -14e9c

Square: 7337635600

Square Root: 292.677296693816

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

T(n,k) = 24·A046802(n,k) - 9·A008518(n,k) - 8·A007318(n,k), triangle read by rows (0 <= k <= n). A168292

Number of integer partitions of the n-th squarefree number using squarefree numbers. A303365

Expansion of ∏_k>=1 1/(1 + k²*x^k). A292165

Triangle t(n,m,k) = binomial(n, m) - k*(binomial(n, m)*binomial(n+1, m)/(m+1)) + k·Eulerian(n+1, m) with k = 6. A178347