Properties of the Number 68129

Sixty-Eight Thousand One Hundred Twenty-Nine

Basics

Value: 68128 → 68129 → 68130

Parity: odd

Prime: No

Previous Prime: 68113

Next Prime: 68141

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 193 × 353

Divisors: 1, 193, 353, 68129

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000101000100001

Octal: 205041

Duodecimal: 33515

Hexadecimal: 10a21

Square: 4641560641

Square Root: 261.01532522057016

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

Number of solid standard Young tableaux with n cells, height <= 2, and depth <= 2. A384725

Strong pseudoprimes to base 67. A20293

Number of nondecreasing arrangements of n numbers in -6..6 with sum zero and sum of squares less than n·42/3. A183932

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 22. A31610

Triangular numbers with sum of digits = 10. A68129