Properties of the Number 66042

Sixty-Six Thousand Forty-Two

Basics

Value: 66041 → 66042 → 66043

Parity: even

Prime: No

Previous Prime: 66041

Next Prime: 66047

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 1223

Divisors: 1, 2, 3, 6, 9, 18, 27, 54, 1223, 2446

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000000111111010

Octal: 200772

Duodecimal: 32276

Hexadecimal: 101fa

Square: 4361545764

Square Root: 256.9863809621047

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

Number of partitions of 5n such that cn(1,5) = cn(4,5) <= cn(2,5) = cn(3,5) < cn(0,5). A36887

Hexagonal spiral sequence: sequence is written as a hexagonal spiral around a 'dummy' center, each entry is the sum of the row in the previous direction containing the previous entry. A63178

Number of binary strings of length n with equal numbers of 00010 and 01100 substrings. A164218

Number of n X 6 0..2 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 3. A239359

Numbers k such that k divided by ((sum of digits of k) multiplied by (product of digits of k)) is prime. A66042