Properties of the Number 66079

Sixty-Six Thousand Seventy-Nine

Basics

Value: 66078 → 66079 → 66080

Parity: odd

Prime: No

Previous Prime: 66071

Next Prime: 66083

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 13 ² × 17 × 23

Divisors: 1, 13, 17, 23, 169, 221, 299, 391, 2873, 3887

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000001000011111

Octal: 201037

Duodecimal: 322A7

Hexadecimal: 1021f

Square: 4366434241

Square Root: 257.05835913270744

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

a(n) = (1/24)*n*(n + 5)*(n² + n + 6). A51743

For a given n, the nonzero digits of n are the prime indices for the factorization of n. A290675

Let prime(0) = 1 and f(n) = product prime(d), where d ranges over all the decimal digits of n. The sequence gives numbers n such that f(n) == 0 (mod n). A113735

Number of ways to place zero or more nonadjacent 1,1 2,0 2,1 2,2 3,1 polyhexes in any orientation on a planar nXnXn triangular grid. A155229

Number of ordered pairs (k, m) with k > 0 and m > 0 such that n = π(k*(k+1)/2) + π(m*(3·m-1)/2), where π(x) denotes the number of primes not exceeding x. A263020

Arises in detailed black hole state counting in loop quantum gravity. A66079