Properties of the Number 38140

Thirty-Eight Thousand One Hundred Forty

Basics

Value: 38139 → 38140 → 38141

Parity: even

Prime: No

Previous Prime: 38119

Next Prime: 38149

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 5 × 1907

Divisors: 1, 2, 4, 5, 10, 20, 1907, 3814, 7628, 9535

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1001010011111100

Octal: 112374

Duodecimal: 1A0A4

Hexadecimal: 94fc

Square: 1454659600

Square Root: 195.29464918425185

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

Sum of squares of four consecutive primes. A133524

Numbers k such that 6·k+1, 6·k+7, 6·k+13, 6·k+19 are consecutive primes. A90839

Let M(n) be the n X n matrix m(i,j)=min(i,j) for 1<=i,j<=n; then a(n) is the trace of M(n)^-7. A114359

Coefficient array of orthogonal polynomials P(n,x)=(x-2n)*P(n-1,x)-(2n-3)*P(n-2,x), P(0,x)=1,P(1,x)=x-2. A178120

The sum of the necessary diagonal movements from each square unit of an n X n+1 rectangle to reach any of the corners of the rectangle. A279034

Duplicate of A090839. A296055

Cardinality of the ramified symmetric inverse monoid R(IS_n). A378232

Number of planar polyhexes with n cells and a single hole of size at least 2. A38140

a(n) equals the coefficient of x^2n-1 in the (2n-1)-th iteration of x/(1-x²) for n>=1. A185752