Properties of the Number -26642

Twenty-Six Thousand Six Hundred Forty-Two

Basics

Value: -26643 → -26642 → -26641

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 7 × 11 × 173

Divisors: 1, 2, 7, 11, 14, 22, 77, 154, 173, 346

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110100000010010

Octal: -64022

Duodecimal: -13502

Hexadecimal: -6812

Square: 709796164

Square Root: 163.2237727783548

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

Expansion of (1-x)^-1/(1+2·x+x²+x³). A77930

Ruth-Aaron numbers (1): sum of prime divisors of n = sum of prime divisors of n+1. A6145

Ruth-Aaron numbers (2): sum of prime divisors of n = sum of prime divisors of n+1 (both taken with multiplicity). A39752

Number of compositions (ordered partitions) of n into 1's, 2's and 4's. A60945

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions or both. A234760

Number of necklace compositions of n where every pair of adjacent parts (including the last with the first) is relatively prime. A328597

Expansion of 1/(1-x³-x⁴-x⁵). A17818

Number T(n,k) of colored integer partitions of n using all colors of a k-set such that each block of part i with multiplicity j has a pattern of i·j distinct colors in increasing order; triangle T(n,k), n>=0, A185283(n)<=k<=n, read by rows. A326616

Numbers common to A006145 and A039752. A39753

Partial sums of A005773. A383527