Properties of the Number 47397

Forty-Seven Thousand Three Hundred Ninety-Seven

Basics

Value: 47396 → 47397 → 47398

Parity: odd

Prime: No

Previous Prime: 47389

Next Prime: 47407

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 37 × 61

Divisors: 1, 3, 7, 21, 37, 61, 111, 183, 259, 427

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011100100100101

Octal: 134445

Duodecimal: 23519

Hexadecimal: b925

Square: 2246475609

Square Root: 217.70852073357165

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

E.g.f.: A(x,y) = exp(-1-y) * ∑_n>=0 (exp(n·x) + y)ⁿ / n!, where A(x,y) = ∑_n>=0 xⁿ/n! * ∑_k=0..n T(n,k)*y^k, as a triangle of coefficients T(n,k) read by rows. A326600

Numbers that are congruent to {0, 1, 2, 6} mod 8. A47397

Central terms in triangle A326600. A326601

a(n) is the least term of the period of the sequence defined by t(1)=n; t(k) = t(k-1)/sod(t(k-1)) if t(k-1) is a multiple of sod(t(k-1)) or t(k-1)*sod(t(k-1)) otherwise, where sod(m)=A007953(m) is the sum of digits of m. A110731