Properties of the Number 68185

Sixty-Eight Thousand One Hundred Eighty-Five

Basics

Value: 68184 → 68185 → 68186

Parity: odd

Prime: No

Previous Prime: 68171

Next Prime: 68207

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 × 13 × 1049

Divisors: 1, 5, 13, 65, 1049, 5245, 13637, 68185

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000101001011001

Octal: 205131

Duodecimal: 33561

Hexadecimal: 10a59

Square: 4649194225

Square Root: 261.1225765804252

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 read by rows: T(n,k) = (∑_i=k..n i!)/(k!) for 0 <= k <= n. A348482

a(n) is the positive integer·such that 3^(M-1/(2·p)) == -2^x (mod M), where p > 2 is prime, M=2^p-1 is the n-th Mersenne prime and x < p. A278792

T(n,k) = 1/9 the number of (n+1) X (k+1) 0..2 arrays with all 2 X 2 subblocks having the same four values. A184048

Number of ways writing nⁿ as a product of decimal digits of some other number which has no digits equal to 1. A68185

Number of nX4 0..1 arrays with every element equal to 0, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero. A301604