Properties of the Number 66455

Sixty-Six Thousand Four Hundred Fifty-Five

Basics

Value: 66454 → 66455 → 66456

Parity: odd

Prime: No

Previous Prime: 66449

Next Prime: 66457

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 × 13291

Divisors: 1, 5, 13291, 66455

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001110010111

Octal: 201627

Duodecimal: 3255B

Hexadecimal: 10397

Square: 4416267025

Square Root: 257.7886731413931

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

G.f. A(x) satisfies: A(x)² = A( x²*(1+x)/(1-x) ), with A(0) = 0. A259117

Least number requiring the base n to produce a prime by base reversal. A75244

a(n) = 6·binomial(n,4) + 5·binomial(n,2) - 4·n + 5. A66455

Partial sums of A005100. A173106