Properties of the Number 38990

Thirty-Eight Thousand Nine Hundred Ninety

Basics

Value: 38989 → 38990 → 38991

Parity: even

Prime: No

Previous Prime: 38977

Next Prime: 38993

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 5 × 7 × 557

Divisors: 1, 2, 5, 7, 10, 14, 35, 70, 557, 1114

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1001100001001110

Octal: 114116

Duodecimal: 1A692

Hexadecimal: 984e

Square: 1520220100

Square Root: 197.45885647395005

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 5-ary Lyndon words of length n over Z₅ with trace 0 and subtrace 2. A74416

Let f(n) = exp(π*sqrt(n)); sequence gives numbers n such that f(n) - floor(f(n)) < 1/10³. A127028

E.g.f. A = A(x,y) satisfies: A² + B² + C² = 1 + y² and A³ + B³ + C³ = 1 + y³, where functions B = B(x,y) and C = C(x,y) are described by A278886 and A278887, respectively. A278885

a(0) = 1, a(n) = 27·n² + 2 for n>0. A10017

Numbers k such that Bernoulli number B_k has denominator 4686. A295770

Expansion of (1-x-x²+2·x³) / ((1-x)*(1+x)*(1-3·x+x²)). A38990