Properties of the Number 38009

Thirty-Eight Thousand Nine

Basics

Value: 38008 → 38009 → 38010

Parity: odd

Prime: No

Previous Prime: 37997

Next Prime: 38011

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 191 × 199

Divisors: 1, 191, 199, 38009

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1001010001111001

Octal: 112171

Duodecimal: 19BB5

Hexadecimal: 9479

Square: 1444684081

Square Root: 194.95897004241687

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

Numbers k such that exactly three d in the range d <= k/2 exist which divide binomial(k-d-1,d-1) and which are not coprime to k. A178099

Sequence of pairwise relatively prime numbers of class P₆ (see comment in A275246). A275251

Composite numbers n such that σ(n)+12 = σ(n+12). A54902

a(n) = ∑_j=0..n |Stirling1(2·n, j)|. A349783

Composite numbers whose prime factors contain no digits other than 1 and 9. A36309

Number of partitions of n with up to six distinct kinds of 1. A320693

a(n) = (10n+1)*(10n+9). A1535

Sum of primes between 100·n and 100·n + 99. A276355

Triangle read by rows, T(n, k) = ∑_j=0..k |Stirling1(n, j)|. A349782

Composite numbers k such that both φ(k+12) = φ(k) + 12 and σ(k+12) = σ(k) + 12. A56777