Properties of the Number 20186

Twenty Thousand One Hundred Eighty-Six

Basics

Value: 20185 → 20186 → 20187

Parity: even

Prime: No

Previous Prime: 20183

Next Prime: 20201

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 10093

Divisors: 1, 2, 10093, 20186

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100111011011010

Octal: 47332

Duodecimal: B822

Hexadecimal: 4eda

Square: 407474596

Square Root: 142.0774436706967

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

a(0) = 1, a(n) = 24·n² + 2 for n>0. A10014

E.g.f. exp(x+x³/6). A190865

Gaps of 2 in sequence A038593 (lower terms). A38643

Monotonic ordering of set S generated by these rules: if·and y are in S then 3xy-x-y is in S, and 2 is in S. A192529

Numbers k such that the continued fraction for sqrt(k) has period 53. A20392

Row sums of triangle A113288. A113289

a(n) = 2ⁿ + 3ⁿ - n. A120848

Apply partial sum operator 4 times to Stern's sequence. A14175

a(n) = floor(n³ / e). A32636

Number of unit cubes that have a side on the surface of a p X p X p cube composed of p³ unit cubes, where p is the n-th prime. A261971