Properties of the Number 20194

Twenty Thousand One Hundred Ninety-Four

Basics

Value: 20193 → 20194 → 20195

Parity: even

Prime: No

Previous Prime: 20183

Next Prime: 20201

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 23 × 439

Divisors: 1, 2, 23, 46, 439, 878, 10097, 20194

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100111011100010

Octal: 47342

Duodecimal: B82A

Hexadecimal: 4ee2

Square: 407797636

Square Root: 142.10559454152394

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 partitions of n with more even parts than odd parts. A108949

a(n) = 3ⁿ + 2ⁿ - 1. A5056

Sum of all odd numbers in Collatz (3x+1) trajectory of n. A213916

Rectangular array T(n,m), read by upward antidiagonals: T(n,m) is the number of difunctional (regular) binary relations between an n-element set and an m-element set. A265417

Number of partitions of n² into factorial parts. A197182

0 together with numbers k such that 4·R_k - 3 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A99412

Numbers whose second arithmetic derivative (A068346) is a primorial number (A002110) > 1. A368702

Self-convolution of composite numbers. A23648

Pseudoprimes to base 66. A20194