Properties of the Number 20022

Twenty Thousand Twenty-Two

Basics

Value: 20021 → 20022 → 20023

Parity: even

Prime: No

Previous Prime: 20021

Next Prime: 20023

Digit Sum: 6

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 47 × 71

Divisors: 1, 2, 3, 6, 47, 71, 94, 141, 142, 213

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100111000110110

Octal: 47066

Duodecimal: B706

Hexadecimal: 4e36

Square: 400880484

Square Root: 141.4991166050163

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

Smallest oblong (promic) number containing exactly n 2's. A48534

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

Numbers k such that k² contains only digits {0,4,8}, not ending with zero. A58441

Numbers that are both interprime and oblong. A263676

Convolution of A000203 and A000009. A277029

Number of distinct sums i³ + j³ + k³ + l³ for 0<=i<=j<=k<=l<=n. A374711

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

Squarefree numbers of the form (prime(k)+1)*(prime(k+1)+1)/4. A79095