Properties of the Number 66140

Sixty-Six Thousand One Hundred Forty

Basics

Value: 66139 → 66140 → 66141

Parity: even

Prime: No

Previous Prime: 66137

Next Prime: 66161

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 3307

Divisors: 1, 2, 4, 5, 10, 20, 3307, 6614, 13228, 16535

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001001011100

Octal: 201134

Duodecimal: 32338

Hexadecimal: 1025c

Square: 4374499600

Square Root: 257.17698186268535

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

Numbers which are the sum of their proper divisors containing the digit 3. A59462

Iterates of A122237, starting from 4. A122241

Pisot sequence L(9,10). A48592

Covering numbers C(n,n-3,n-4). A66140