Properties of the Number 20375

Twenty Thousand Three Hundred Seventy-Five

Basics

Value: 20374 → 20375 → 20376

Parity: odd

Prime: No

Previous Prime: 20369

Next Prime: 20389

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 ³ × 163

Divisors: 1, 5, 25, 125, 163, 815, 4075, 20375

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100111110010111

Octal: 47627

Duodecimal: B95B

Hexadecimal: 4f97

Square: 415140625

Square Root: 142.74102423620198

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

T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no element 1 greater than its north, west or northeast neighbor modulo n and the upper left element equal to 0. A266291

Difference between the arithmetic derivative of A276086(n) and A276086(n) itself, which is the prime product form of primorial base expansion of n. A342016

a(n) = A003415(A276086(n)) mod A276086(n). A342015

Number of 5-ary rooted trees with n nodes and height exactly 7. A36638

Smallest multiple of n-th prime which is == 1 mod (n+1)-st prime. A73603

prime(n)*( prime(n)-n ). A161522

Number of nX2 arrays containing 2 copies of 0..n-1 with no element 1 greater than its north, west or northeast neighbor modulo n and the upper left element equal to 0. A266289

a(3n+k) = (k+1)*binomial(4n+k, n)/(3n+k+1), where k is n reduced mod 3. A124753

Numbers k such that the continued fraction for sqrt(k) has period 36. A20375