Properties of the Number 68397

Sixty-Eight Thousand Three Hundred Ninety-Seven

Basics

Value: 68396 → 68397 → 68398

Parity: odd

Prime: No

Previous Prime: 68389

Next Prime: 68399

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 3257

Divisors: 1, 3, 7, 21, 3257, 9771, 22799, 68397

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000101100101101

Octal: 205455

Duodecimal: 336B9

Hexadecimal: 10b2d

Square: 4678149609

Square Root: 261.5282011562042

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

a(n) has exactly (a(n) - n) / 2 partitions with exactly (a(n) - n) / 2 prime parts. A299732

a(n) = 2 + floor((1 + ∑_j=1..n-1 a(j))/4). A120161

Left-truncatable happy numbers: every suffix is a happy number and no digits are zero. A383639

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, -1), (-1, 1, 1), (1, -1, 0), (1, 1, 1)}. A149574

a(n) = Lucas(n) + (-1)ⁿ + 1. A68397

Number of tilings of a 5 X n rectangle using n pentominoes of shapes P, X, Y. A343529