Properties of the Number 68916

Sixty-Eight Thousand Nine Hundred Sixteen

Basics

Value: 68915 → 68916 → 68917

Parity: even

Prime: No

Previous Prime: 68909

Next Prime: 68917

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 5743

Divisors: 1, 2, 3, 4, 6, 12, 5743, 11486, 17229, 22972

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000110100110100

Octal: 206464

Duodecimal: 33A70

Hexadecimal: 10d34

Square: 4749415056

Square Root: 262.51857077166943

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

Triangle T(n, k) = T(n-1, k) + T(n-1, k-1) + (j+1)*prime(j)*T(n-2, k-1) with j=4, read by rows. A153649

Preperiod (or threshold) of orbit of Watanabe's 3-shift tag system {00/1011} applied to the word (100)ⁿ. A292090

a(n) = floor( n*(n-1)*(n-2)*(n-3)/23 ). A11933

Least k such that ∑_i=n..k 1/i >= n. A168214

Number of cycles in the n-dipyramidal graph. A307621

Smallest positive integer that is equal to the sum of the n-th powers of its prime factors (counted with multiplicity). A68916