Properties of the Number -3160

One Hundred Sixty

Basics

Value: -3161 → -3160 → -3159

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 5 × 79

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 79, 158

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110001011000

Octal: -6130

Duodecimal: -19B4

Hexadecimal: -c58

Square: 9985600

Square Root: 56.213877290220786

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

Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of f(i,j)=(2i-1 if i=j and 1 otherwise) for i>=1 and j>=1 (as in A204131). A204132

The y coordinate of the fundamental unit in the cubic field Q(D^1/3): see Comments for precise definition. A262562

Hexagonal numbers: a(n) = n*(2·n-1). A384

Centered 9-gonal (also known as nonagonal or enneagonal) numbers. Every third triangular number, starting with a(1)=1. A60544

Triangular numbers (A000217) with prime indices. A34953

Numbers k such that A102489(k) is divisible by k. A32563

a(n) = 2·n*(4·n - 1). A14635

Even triangular numbers. A14494

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A253350

Numbers k such that binomial(2k,k) is not divisible by 3, 5 or 7. A30979