Properties of the Number 79440

Seventy-Nine Thousand Four Hundred Forty

Basics

Value: 79439 → 79440 → 79441

Parity: even

Prime: No

Previous Prime: 79433

Next Prime: 79451

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ⁴ × 3 × 5 × 331

Divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011011001010000

Octal: 233120

Duodecimal: 39B80

Hexadecimal: 13650

Square: 6310713600

Square Root: 281.85102447924504

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

Pentanacci numbers: a(n) = a(n-1) + a(n-2) + a(n-3) + a(n-4) + a(n-5), starting 1,0,0,0,1. A124313

a(n) = n·Fibonacci(n) * ∑_d∣n 1/(d·Fibonacci(d)). A203319

Number of reduced words of length n in Coxeter group on 5 generators S_i with relations (S_i)² = (S_i S_j)⁵ = I. A163316

Number of transpositions (2-cycles) in range [A014137(n-1)..A014138(n-1)] of permutation A057505 (= Donaghey's automorphism M). A79440

Number of 4Xn 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements. A283637