Properties of the Number 68912

Sixty-Eight Thousand Nine Hundred Twelve

Basics

Value: 68911 → 68912 → 68913

Parity: even

Prime: No

Previous Prime: 68909

Next Prime: 68917

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ⁴ × 59 × 73

Divisors: 1, 2, 4, 8, 16, 59, 73, 118, 146, 236

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000110100110000

Octal: 206460

Duodecimal: 33A68

Hexadecimal: 10d30

Square: 4748863744

Square Root: 262.5109521524769

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

Group the natural numbers so that the n-th group contains n numbers whose concatenation is divisible by n: (1), (2, 4), (3, 5, 7), (6, 8, 9, 12), (10, 11, 13, 14, 15), (16, 17, 18, 19, 20, 24), ... Sequence gives numbers formed by the concatenation. A75621

Number of arrangements of 5 nonzero numbers x(i) in -n..n with the sum of x(i)*x(i+1) equal to zero. A188251

G.f.: ∑_n>=0 x^n*(n+1/2) * P(x)ⁿ, where P(x) is the partition function (A000041). A356507

Number of n step walks (each step +/-1 starting from 0) which are never more than 3 or less than -3. A68912

Number of nX4 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A303250