Properties of the Number 66560

Sixty-Six Thousand Five Hundred Sixty

Basics

Value: 66559 → 66560 → 66561

Parity: even

Prime: No

Previous Prime: 66553

Next Prime: 66569

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ¹⁰ × 5 × 13

Divisors: 1, 2, 4, 5, 8, 10, 13, 16, 20, 26

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000010000000000

Octal: 202000

Duodecimal: 32628

Hexadecimal: 10400

Square: 4430233600

Square Root: 257.9922479455536

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 5 nonzero 8th powers. A3383

a(n) = n²*(2·n+1). A99721

a(n) = ∑_k=0..n A136630(n,k) * 2^nk. A136632

Sums of 2 distinct powers of 4. A38470

Sums of two powers of 4. A55236

Expansion of 1/(1-2·x+2·x³). A77940

Expansion of 1/(1+2·x-2·x³). A77988

Expansion of 1/sqrt(1 - 4·x + 12·x²). A98336

Expansion of 1/sqrt(1+4·x+12·x²). A116093

Numbers with 44 divisors. A175751