Properties of the Number 20112

Twenty Thousand One Hundred Twelve

Basics

Value: 20111 → 20112 → 20113

Parity: even

Prime: No

Previous Prime: 20107

Next Prime: 20113

Digit Sum: 6

Digital Root: 6

Palindrome: No

Factorization: 2 ⁴ × 3 × 419

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100111010010000

Octal: 47220

Duodecimal: B780

Hexadecimal: 4e90

Square: 404492544

Square Root: 141.8167832098867

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 subsets of {1..n} containing all of their integer quotients > 1. A326079

Number of equivalence classes of ballot paths of length n for the string uu. A274110

Number of subsets of {2..n} containing all of their integer quotients > 1. A326078

Number of ways to write n as an ordered sum of 6 squarefree numbers. A341066

Expansion of 1/(1-x³-x⁴-x⁵). A17818

Another lazy binary representation of n: similar to A089591 except that the single carry is performed before the increment instead of after. A89600

Structured heptagonal anti-diamond numbers (vertex structure 7). A100186

a(0) = 1, a(1) = 8, a(n) = 56·a(n-2) - a(n-1). A165506

The number of all possible covers of L-length line segment by 3-length line segments with allowed gaps < 3. A228362

Numbers k such that w(k), w(k+1), and w(k+2) are all odd, where w is A360519. A361106