Properties of the Number 20220

Twenty Thousand Two Hundred Twenty

Basics

Value: 20219 → 20220 → 20221

Parity: even

Prime: No

Previous Prime: 20219

Next Prime: 20231

Digit Sum: 6

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 5 × 337

Divisors: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100111011111100

Octal: 47374

Duodecimal: B850

Hexadecimal: 4efc

Square: 408848400

Square Root: 142.19704638282752

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 ternary squarefree words of length n. A6156

Numbers whose decimal expansion contains only 0's and 2's. A169965

Denominators of convergents to π by Farey fractions. A63673

Sum of prime divisors of n (with repetition) is one less than the sum of prime divisors (with repetition) of n+1. A228126

Numbers k such that k and k² use only the digits 0, 2, 4, 6 and 8. A136904

Numbers consisting of either 2's and 0's or 5's and 0's. A168541

a(n)² is a square whose decimal expansion digits occur with an exact frequency of 3. A52095

Integers k such that k·28·c + 1 is prime for c = 1, 2, 4, 7 and 14. A67199

In the list of divisors of n (in base 3), each digit 0-2 appears equally often. A45811

Numbers k such that k² has only digits 0, 4 and 8. A202170