Properties of the Number 66599

Sixty-Six Thousand Five Hundred Ninety-Nine

Basics

Value: 66598 → 66599 → 66600

Parity: odd

Prime: No

Previous Prime: 66593

Next Prime: 66601

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 13 × 47 × 109

Divisors: 1, 13, 47, 109, 611, 1417, 5123, 66599

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000010000100111

Octal: 202047

Duodecimal: 3265B

Hexadecimal: 10427

Square: 4435426801

Square Root: 258.06782054336026

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 n where n² = x³ + y³; x,y>0 and gcd(x,y)=1. A99426

Numbers n such that p1=2n+3, p2=4n+5, p3=6n+7 and p4=8n+9 are all prime. A105653

a(n) = 74·n² - 1. A158744

Greater value of a coprime pair (x,y) satisfying x³+y³=z². A282639

Number of (n+2)X(5+2) 0..2 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime. A251816

Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 5 6 or 7. A252216

a(n) = smallest number which can be expressed as the product of a number and its reversal in exactly n different ways. A66599