Properties of the Number -86830

Eighty-Six Thousand Eight Hundred Thirty

Basics

Value: -86831 → -86830 → -86829

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 × 19 × 457

Divisors: 1, 2, 5, 10, 19, 38, 95, 190, 457, 914

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10101001100101110

Octal: -251456

Duodecimal: -422BA

Hexadecimal: -1532e

Square: 7539448900

Square Root: 294.66930617219026

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 compositions of n whose leaders of strictly decreasing runs are strictly increasing. A374762

a(n) = n*(1 + n)*(3 - 4·n + 4·n²)/6. A213840

a(n) = ∑_k=0..n binomial(n,2k)²*binomial(n-k,k). A278405