Properties of the Number -87081

Eighty-Seven Thousand Eighty-One

Basics

Value: -87082 → -87081 → -87080

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 29027

Divisors: 1, 3, 29027, 87081

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10101010000101001

Octal: -252051

Duodecimal: -42489

Hexadecimal: -15429

Square: 7583100561

Square Root: 295.09489998981684

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

Keith sequence for the number 197. A186830

Numbers k for which the sum of digits of σ(k) = the product of digits of σ(k). A277217

Regular triangle where T(n,k) is the number of non-isomorphic multiset partitions of k-element multiset partitions of multisets of size n. A330473

a(0) = 0, a(1) = 1; for n > 1, a(n) = a(n-2) + a(n-1) + A000071(n+1). A140992

Number of (n+6)X8 0..1 matrices with each 7X7 subblock idempotent. A224582