Properties of the Number 47138

Forty-Seven Thousand One Hundred Thirty-Eight

Basics

Value: 47137 → 47138 → 47139

Parity: even

Prime: No

Previous Prime: 47137

Next Prime: 47143

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 7 ² × 13 × 37

Divisors: 1, 2, 7, 13, 14, 26, 37, 49, 74, 91

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011100000100010

Octal: 134042

Duodecimal: 23342

Hexadecimal: b822

Square: 2221991044

Square Root: 217.1128738697915

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

O.g.f.: A(x) = ∑_n>=0 xⁿ*∏_k=0..n (1 + k·x). A124380

Row lengths of irregular triangle A381587. A381357

Numbers k such that the k-th triangular number contains only digits {0,1,9}. A119048

a(n) = T(n,n+3), array T as in A047130. A47138