Properties of the Number 20204

Twenty Thousand Two Hundred Four

Basics

Value: 20203 → 20204 → 20205

Parity: even

Prime: No

Previous Prime: 20201

Next Prime: 20219

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5051

Divisors: 1, 2, 4, 5051, 10102, 20204

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 100111011101100

Octal: 47354

Duodecimal: B838

Hexadecimal: 4eec

Square: 408201616

Square Root: 142.1407752898513

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

Sum of 11 positive 9th powers. A4800

Preperiod (or threshold) of orbit of Post's {00, 1101} tag system applied to the word (100)ⁿ, or -1 if this word has an unbounded trajectory. A284119

Weighted count of partitions with distinct parts. A5895

Triangle read by rows: T(n,k) is the number of secondary structures of size n having k stacks of odd length (n>=0, k>=0). A202845

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 68 ones. A31836

a(n) = 3ⁿ + 2ⁿ + n. A120846

a(n) = a(1) + a(2) + ... + a(n-1) + a(m) for n >= 4, where m = 2·n - 3 - 2^p+1 and p is the unique integer such that 2^p < n - 1 <= 2^p+1, starting with a(1) = 1, a(2) = 2, and a(3) = 3. A49956

Numbers n such that n | 12ⁿ + 11ⁿ + 10ⁿ + 9ⁿ + 8ⁿ + 7ⁿ + 6ⁿ + 5ⁿ + 4ⁿ. A57285

Pseudoprimes to base 76. A20204

Number of 3Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4. A241056