Properties of the Number 20586

Twenty Thousand Five Hundred Eighty-Six

Basics

Value: 20585 → 20586 → 20587

Parity: even

Prime: No

Previous Prime: 20563

Next Prime: 20593

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 47 × 73

Divisors: 1, 2, 3, 6, 47, 73, 94, 141, 146, 219

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101000001101010

Octal: 50152

Duodecimal: BAB6

Hexadecimal: 506a

Square: 423783396

Square Root: 143.47822134386809

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

McKay-Thompson series of class 12F for Monster. A58484

Number of twos minus number of ones in the first 2ⁿ entries of the Kolakoski sequence, A000002. A289323

a(n) = 27·n² - 21·n + 6 (n>=1). A304164

Number of partitions of n into prime power parts (not including 1) that do not divide n. A300580

Products of four distinct primes between sphenic numbers (products of 3 distinct primes). A351382

a(n) = (7·n+1)*(7·n+6). A1526

Base-9 palindromes that start with 3. A43030

Number of ways to write n as sum of prime powers p^e such that e>0 and p does not divide n. A79412

Number of different deltoids (including squares) whose vertices are on an n X n grid. A159944

Numbers n such that the following are six primes: 2·n² +- 1, 3·n² +- 1, 5·n² +- 1. A226461