Properties of the Number 79128

Seventy-Nine Thousand One Hundred Twenty-Eight

Basics

Value: 79127 → 79128 → 79129

Parity: even

Prime: No

Previous Prime: 79111

Next Prime: 79133

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 7 × 157

Divisors: 1, 2, 3, 4, 6, 7, 8, 9, 12, 14

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10011010100011000

Octal: 232430

Duodecimal: 39960

Hexadecimal: 13518

Square: 6261240384

Square Root: 281.296996073545

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 ∏_m>=1 (1+q^m)^-9. A22604

Numbers k divisible by at least one nontrivial permutation (rearrangement) of the digits of k, excluding all permutations that result in digit loss. A90056

a(n) = 54·n² - 78·n + 36. A277983

a(n) = n² + 5·n + 1. A82111

Number of degree-n permutations with (mutually) relatively prime cycle lengths. A79128

Size of acyclic domain of size n based on the alternating scheme. A144685

Maximal size of Condorcet domain on n alternatives. A369614

a(n) = pⁿ + qⁿ, p = (1 + sqrt(21))/2, q = (1 - sqrt(21))/2. A85487

Number of nX3 0..5 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 6, and upper left element zero. A230589