Properties of the Number 42938

Forty-Two Thousand Nine Hundred Thirty-Eight

Basics

Value: 42937 → 42938 → 42939

Parity: even

Prime: No

Previous Prime: 42937

Next Prime: 42943

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 7 × 3067

Divisors: 1, 2, 7, 14, 3067, 6134, 21469, 42938

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011110111010

Octal: 123672

Duodecimal: 20A22

Hexadecimal: a7ba

Square: 1843671844

Square Root: 207.21486433168832

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 binary arrangements without adjacent 1's on n X n torus connected e-w ne-sw n-s nw-se. A67958

T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nXk array. A219299

A Moessner triangle using (1, 3, 5, ...). A125750

Number of nX4 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nX4 array. A219295

Number of nX6 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nX6 array. A219297

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, -1), (-1, 1, 1), (1, 0, 0), (1, 1, 1)}. A150708

Nonzero coefficients of the g.f. that satisfies: A(x) = x + A(A(x))³. A153851

a(n) is the coefficient of x^2·n-1 in the n-fold self-composition of G(x) = x + G(G(x))³ = g.f. of A153851. A153850

Reverse or triple: if reverse(a(n)) > a(n), a(n+1) = reverse(a(n)), else a(n+1) = 3·a(n). A42938