Properties of the Number 20122

Twenty Thousand One Hundred Twenty-Two

Basics

Value: 20121 → 20122 → 20123

Parity: even

Prime: No

Previous Prime: 20117

Next Prime: 20123

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 × 10061

Divisors: 1, 2, 10061, 20122

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 100111010011010

Octal: 47232

Duodecimal: B78A

Hexadecimal: 4e9a

Square: 404894884

Square Root: 141.85203558638133

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 in ternary. A1363

Primes of form 4k+3 written in base 3. A72805

Positive numbers of the form x⁵-10x³*y²+5x·y⁴ (where x,y are integers and y>x). A135792

Numbers of the form x⁵-10x³*y²+5x·y⁴ (where x,y are integers). A135793

Values of y such that x² + y² = 53ⁿ with·and y coprime and 0 < x < y. A230760

Number of compositions of n with exactly six descents. A241631

Irregular triangle read by rows: T(n,k) is the number of n X n tic-tac-toe positions (up to rotation and reflection) with k tokens (i.e., after k plays) which occur in a game (n > 0, 0 <= k <= n²). A317575

A014486-indices of A083932-trees. A83934

Expansion of 1/(x^k*(1-x-3·x^k+1)) for k=7. A143458

Numbers k such that the continued fraction for sqrt(k) has period 89. A20428