Properties of the Number -69920

Sixty-Nine Thousand Nine Hundred Twenty

Basics

Value: -69921 → -69920 → -69919

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ⁵ × 5 × 19 × 23

Divisors: 1, 2, 4, 5, 8, 10, 16, 19, 20, 23

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -10001000100100000

Octal: -210440

Duodecimal: -34568

Hexadecimal: -11120

Square: 4888806400

Square Root: 264.42390209661454

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

Expansion of 1/(1 + x/(1 + x/(1 + x²/(1 + x/(1 + x³/(1 + x/(1 + x⁴/(1 + ...)))))))), a continued fraction. A296202

Number of 4's in all partitions of n. A24788

T(n,k)=Number of nXk 0..2 arrays with every element neighboring horizontally or vertically both a 0 and a 1. A203542

a(n) = 10·a(n-1) - 8·a(n-2), with a(0)=0, a(1)=1. A190990

Expansion of x*(1+9·x-8·x³)/(1-10·x²+8·x⁴). A249311

a(n) = ∑_{k=0..floor(n/2)} (-1)^k * binomial(4·n-2·k-2,n-2·k). A390685

Numbers k such that k divides the number of overpartitions of k (A015128). A299961

Number of nX3 0..2 arrays with every element neighboring horizontally or vertically both a 0 and a 1. A203537

Number of nX7 0..2 arrays with every element neighboring horizontally or vertically both a 0 and a 1. A203541

Number of ways to choose a constant rooted partition of each part in a strict rooted partition of n. A301767