Properties of the Number -87451

Eighty-Seven Thousand Four Hundred Fifty-One

Basics

Value: -87452 → -87451 → -87450

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 7 × 13 × 31 ²

Divisors: 1, 7, 13, 31, 91, 217, 403, 961, 2821, 6727

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10101010110011011

Octal: -252633

Duodecimal: -42737

Hexadecimal: -1559b

Square: 7647677401

Square Root: 295.72115243925316

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

Structured octagonal prism numbers. A100176

Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and w+4x+4y>0. A211626

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

Expansion of 1/((1-x)(1-3x)(1-9x)(1-12x)). A21704