Properties of the Number 38728

Thirty-Eight Thousand Seven Hundred Twenty-Eight

Basics

Value: 38727 → 38728 → 38729

Parity: even

Prime: No

Previous Prime: 38723

Next Prime: 38729

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 47 × 103

Divisors: 1, 2, 4, 8, 47, 94, 103, 188, 206, 376

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001011101001000

Octal: 113510

Duodecimal: 1A4B4

Hexadecimal: 9748

Square: 1499857984

Square Root: 196.79430886080013

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

p-INVERT of (1,1,1,1,1,...), where p(S) = 1 - S - S² - S³. A291000

a(n) is the number of unlabeled rank-3 graded lattices with 4 coatoms and n atoms. A322599

Position where 10ⁿ-1 occurs in the Kaprekar sequence A006886. A193992

a(n) = 1 + n*(n+1)*(n²-n+12)/12. A136396

Number of binary strings of length n with equal numbers of 0001 and 1010 substrings. A164163

Configurations of linear chains in a 5-dimensional hypercubic lattice. A38728

Rolling icosahedron footprints: number of nX7 0..11 arrays starting with 0 where 0..11 label vertices of an icosahedron and every array movement to a horizontal, vertical or antidiagonal neighbor moves along an icosahedral edge. A223185