Properties of the Number 68747

Sixty-Eight Thousand Seven Hundred Forty-Seven

Basics

Value: 68746 → 68747 → 68748

Parity: odd

Prime: No

Previous Prime: 68743

Next Prime: 68749

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 7 ² × 23 × 61

Divisors: 1, 7, 23, 49, 61, 161, 427, 1127, 1403, 2989

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000110010001011

Octal: 206213

Duodecimal: 3394B

Hexadecimal: 10c8b

Square: 4726150009

Square Root: 262.1964912045926

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

Let Do(n) = A006566(n) = n-th dodecahedral number. Consider all integer triples (i,j,k), j >= k>0, with Do(i) = Do(j) + Do(k), ordered by increasing i; sequence gives i values. A53017

Number of distinct regular languages over 4-ary alphabet, whose minimum regular expression has ordinary length n. A211953

Number of potential flows in 6 X 6 array with integer velocities in -n..n, i.e., number of 6 X 6 arrays with adjacent elements differing by no more than n, counting arrays differing by a constant only once. A68747