Properties of the Number -81060

Eighty-One Thousand Sixty

Basics

Value: -81061 → -81060 → -81059

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 5 × 7 × 193

Divisors: 1, 2, 3, 4, 5, 6, 7, 10, 12, 14

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -10011110010100100

Octal: -236244

Duodecimal: -3AAB0

Hexadecimal: -13ca4

Square: 6570723600

Square Root: 284.710379157487

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

a(n) = n*(n+1)*(11·n+1)/6. A132112

a(n) = ∑_k=1..n binomial(n,k) * sigma₂(k). A356038

Triangle T(n,k), n>=0, 0<=k<=n, read by rows: T(n,k) = number of simple graphs on n labeled nodes with k edges where each maximally connected subgraph is either a tree or a cycle. A144163

Triangle of sums of the first k n-th powers multiplied by binomial(n,k), read by rows. A215078

Numbers n such that φ(n)=d₁!!*d₂!!*...*d_k!! where d₁ d₂ ... d_k is the decimal expansion of n. A139408