Properties of the Number 20694

Twenty Thousand Six Hundred Ninety-Four

Basics

Value: 20693 → 20694 → 20695

Parity: even

Prime: No

Previous Prime: 20693

Next Prime: 20707

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 3449

Divisors: 1, 2, 3, 6, 3449, 6898, 10347, 20694

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101000011010110

Octal: 50326

Duodecimal: BB86

Hexadecimal: 50d6

Square: 428241636

Square Root: 143.85409274678284

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

Number of partitions of n containing a clique of size 5. A183562

Positions of records in A366091. A366065

Poincaré series [or Poincare series] (or Molien series) for mod 2 cohomology of universal W-group W(4). A14697

G.f. A(x) satisfies: 1 = ∑_n>=0 xⁿ * ((1+x)ⁿ - A(x))ⁿ⁺¹, where A(0) = 0. A307940

a(n) is the integer k in the interval [2,n] at which log(n)*log(k) is closest to an integer. A341651

Numbers of form 9 x² + 10 y². A20694