Properties of the Number 66250

Sixty-Six Thousand Two Hundred Fifty

Basics

Value: 66249 → 66250 → 66251

Parity: even

Prime: No

Previous Prime: 66239

Next Prime: 66271

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 ⁴ × 53

Divisors: 1, 2, 5, 10, 25, 50, 53, 106, 125, 250

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10000001011001010

Octal: 201312

Duodecimal: 3240A

Hexadecimal: 102ca

Square: 4389062500

Square Root: 257.390753524675

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 that are the sum of 2 nonzero squares in exactly 5 ways. A25288

Numbers that are the sum of 2 distinct nonzero squares in exactly 5 ways. A25306

Expansion of (theta₃(z)*theta₃(23z) + theta₂(z)*theta₂(23z))⁵. A328093

Number of nX3 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nX3 array. A219622

Numbers that are the sum of 2 squares in exactly 5 ways. A294716

T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nXk array. A219627

a(n) = if n+1 is prime then A049084(n+1)*2 - 1 else A066246(n+1)*2. A66250