Properties of the Number 20095

Twenty Thousand Ninety-Five

Basics

Value: 20094 → 20095 → 20096

Parity: odd

Prime: No

Previous Prime: 20089

Next Prime: 20101

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 5 × 4019

Divisors: 1, 5, 4019, 20095

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100111001111111

Octal: 47177

Duodecimal: B767

Hexadecimal: 4e7f

Square: 403809025

Square Root: 141.75683405042594

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(n) = a(n-1) + a(n-2) + 2 a([(n-1)/2]), where a(0) = 1, a(1) = 1, a(2) = 1. A298354

a(1) = 1; a(n+1) = ∑_d∣n τ(d)*a(d), where τ = number of divisors (A000005). A307793

Index k in A095773 where a string of n identical values occurs. A96183

First differences of A047780. A100790

Number of (5+1) X (n+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction. A250659

Numbers n such that n³ contains the consecutive substring 2,3,5,7. A295900

Smallest n-digit number e such that there exists a primitive Pythagorean n-digit quintuple (a,b,c,d,e) with 10^n-1 <= a < b < c < d < e < 10ⁿ. A380729

Triangle, read by rows, such that the binomial transform of the n-th row lists the m-dimensional partitions of n, for n>=1 and m>=0. A96806

Ceiling of γ(n+10/11)/γ(10/11). A20095