Properties of the Number 66775

Sixty-Six Thousand Seven Hundred Seventy-Five

Basics

Value: 66774 → 66775 → 66776

Parity: odd

Prime: No

Previous Prime: 66763

Next Prime: 66791

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 5 ² × 2671

Divisors: 1, 5, 25, 2671, 13355, 66775

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000010011010111

Octal: 202327

Duodecimal: 32787

Hexadecimal: 104d7

Square: 4458900625

Square Root: 258.408591188451

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 n with difference -7 between the number of odd parts and the number of even parts, both counted without multiplicity. A242685

Partial sums of A001580. A174121

Primes p such that 2·p² is not in A066721. A66775

Number of (n+1)X3 0..2 arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum. A185772