Properties of the Number -79920

Seventy-Nine Thousand Nine Hundred Twenty

Basics

Value: -79921 → -79920 → -79919

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ³ × 5 × 37

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: -10011100000110000

Octal: -234060

Duodecimal: -3A300

Hexadecimal: -13830

Square: 6387206400

Square Root: 282.70125574535393

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

Glaisher's function J(n) (18 squares version). A2613

Number of inequivalent (mod D₄) ways four checkers can be placed on an n X n board. A242279

a(n) = 4·a(n-1) - 2·a(n-2) for n > 1; a(0) = 3, a(1) = 14. A164304

Numbers with prime factorization pqr^3s^4. A190294

Number of length n 0..1 arrays with each partial sum starting from the beginning no more than one standard deviation from its mean. A244781

Triangle, read by rows, where the n-th row lists the (n²+1) coefficients of (1+2·x+...+(n+1)*xⁿ)ⁿ. A329709

Expansion of (x+2) / ((x+1)*(x²-3·x+1)). A102714

Triangle read by rows: T(n,k) = binomial(n,k)*(binomial(n-1,k-1)*binomial(n+1,k+1) + binomial(n-1,k)*binomial(n+1,k)), with T(0,0) = 1. A174148

A generalized Narayana triangle for sec(x)². A180960

Numbers k such that k = Product (p_j^e_j) = Product (π(p_j)*p_j), where π() = A000720. A304194