Properties of the Number 28079

Twenty-Eight Thousand Seventy-Nine

Basics

Value: 28078 → 28079 → 28080

Parity: odd

Prime: No

Previous Prime: 28069

Next Prime: 28081

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 43 × 653

Divisors: 1, 43, 653, 28079

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110110101111

Octal: 66657

Duodecimal: 142BB

Hexadecimal: 6daf

Square: 788430241

Square Root: 167.56789668668637

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

Smallest number for which Knuth's power tree method produces an addition chain of length n. A115617

a(n) is the number of divisors of n! with exactly n prime factors (counted with multiplicity). A393241

Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A254903

Number of (n+2)X4 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally at least two different ways, and new values 0..1 introduced in row major order. A204965

Expansion of 1/((1-3x)(1-6x)(1-8x)(1-9x)). A28079