Properties of the Number 68120

Sixty-Eight Thousand One Hundred Twenty

Basics

Value: 68119 → 68120 → 68121

Parity: even

Prime: No

Previous Prime: 68113

Next Prime: 68141

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 5 × 13 × 131

Divisors: 1, 2, 4, 5, 8, 10, 13, 20, 26, 40

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000101000011000

Octal: 205030

Duodecimal: 33508

Hexadecimal: 10a18

Square: 4640334400

Square Root: 260.99808428415713

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

T(n,k)=Number of length n+k 0..3 arrays with at most one downstep in every k consecutive neighbor pairs. A258730

a(n) = 4*(3·n+1)*(3·n+2). A144410

Number of (n+1) X (1+1) 0..1 arrays with each 2 X 2 subblock having clockwise pattern 0000 0011 or 0101. A259215

Triangle read by rows: T(n,k) is number of Grand Motzkin paths of length n having k returns to the x-axis (i.e., d or u steps hitting the x-axis). A109193

Number of length n+3 0..3 arrays with at most one downstep in every 3 consecutive neighbor pairs. A258725

Number of length n+6 0..3 arrays with at most one downstep in every n consecutive neighbor pairs. A258736

Smallest prime beginning with exactly n n's. A68120