Properties of the Number 66670

Sixty-Six Thousand Six Hundred Seventy

Basics

Value: 66669 → 66670 → 66671

Parity: even

Prime: No

Previous Prime: 66653

Next Prime: 66683

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 × 59 × 113

Divisors: 1, 2, 5, 10, 59, 113, 118, 226, 295, 565

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000010001101110

Octal: 202156

Duodecimal: 326BA

Hexadecimal: 1046e

Square: 4444888900

Square Root: 258.2053446387197

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 nXk arrays containing k copies of 0..n-1 with no element 1 greater than its west, southwest or northwest neighbor modulo n and the upper left element equal to 0. A267163

Number of 4 X n arrays containing n copies of 0..4-1 with no element 1 greater than its west, southwest or northwest neighbor modulo 4 and the upper left element equal to 0. A267165

Primes arising in A066669: the only odd prime divisor of φ(A066669(n)). A66670