Properties of the Number -32131

Thirty-Two Thousand One Hundred Thirty-One

Basics

Value: -32132 → -32131 → -32130

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 11 × 23 × 127

Divisors: 1, 11, 23, 127, 253, 1397, 2921, 32131

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111110110000011

Octal: -76603

Duodecimal: -16717

Hexadecimal: -7d83

Square: 1032401161

Square Root: 179.25122035846786

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

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of e.g.f.: exp(∏_j=1..n 1/(1+x^j) - 1). A294289

E.g.f.: exp(1/((1+x)*(1+x²)*(1+x³)) - 1). A294291

Doubly triangular numbers: a(n) = n*(n+1)*(n²+n+2)/8. A2817

Concatenate n with n-th prime. A45532

Terms of A324315 (squarefree integers m > 1 such that if prime p divides m, then the sum of the base p digits of m is at least p) that are also hexagonal numbers (A000384) with index equal to their largest prime factor. A324319

n written in fractional base 4/3. A24631

Triangular numbers with sum of digits = 10. A68129

Triangular numbers n such that σ(n) is a square number. A256151

Positive integers of the form (10·m²+1)/11. A179338

Least triangular number t such that t = prime(n)*triangular(m) for some m>0, or 0 if no such t exists. A225503