Properties of the Number 20201

Twenty Thousand Two Hundred One

Basics

Value: 20200 → 20201 → 20202

Parity: odd

Prime: Yes

Previous Prime: 20183

Next Prime: 20219

Digit Sum: 5

Digital Root: 5

Palindrome: No

Factorization: 20201

Divisors: 1, 20201

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100111011101001

Octal: 47351

Duodecimal: B835

Hexadecimal: 4ee9

Square: 408080401

Square Root: 142.13022197970423

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

Primes whose decimal representation also represents a prime in base 3. A89981

Primes of the form j² + (j+1)². A27862

Numbers that are the sum of 11 positive 8th powers. A3389

Numbers that are the sum of 8 positive 9th powers. A3397

Primes having only {0, 1, 2} as digits. A36953

Primes whose sum of digits is 5. A62341

Primes with arithmetic mean of digits = 1 (sum of digits = number of digits). A69710

Primes of form n² + 10000. A256838

Luhn primes: primes p such that p + (p reversed) is also a prime. A61783

Łukasiewicz word for each rooted plane tree (interpretation e in Stanley's exercise 19) encoded by A014486 (or A063171), with the last leaf implicit, i.e., these words are given without the last trailing zero, except for the null tree which is encoded as 0. A71153