Properties of the Number 66761

Sixty-Six Thousand Seven Hundred Sixty-One

Basics

Value: 66760 → 66761 → 66762

Parity: odd

Prime: No

Previous Prime: 66751

Next Prime: 66763

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 101 × 661

Divisors: 1, 101, 661, 66761

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000010011001001

Octal: 202311

Duodecimal: 32775

Hexadecimal: 104c9

Square: 4457031121

Square Root: 258.3815008858026

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) = A077696(n+1)/A077696(n). A77697

Least integer k such that prime(k+1) - prime(k) = 2 and prime(k+2) - prime(k+1) = 2n, or 0 if no such k exists. A280941

Number of positive integers of the form (n²+k²)/(n-k) for k=1,2,3,4,....,n-1. A66761

Number of 4 X n binary arrays without the pattern 1 1 0 diagonally, vertically, antidiagonally or horizontally. A188609