Properties of the Number 17439

Seventeen Thousand Four Hundred Thirty-Nine

Basics

Value: 17438 → 17439 → 17440

Parity: odd

Prime: No

Previous Prime: 17431

Next Prime: 17443

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5813

Divisors: 1, 3, 5813, 17439

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100010000011111

Octal: 42037

Duodecimal: A113

Hexadecimal: 441f

Square: 304118721

Square Root: 132.05680595864797

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

Let f(0)=1, f(1)=t, f(n+1) = (f(n)²+tⁿ)/f(n-1). f(t) is a polynomial with integer coefficients. Then a(n) = f(n) when t=3. A81704

a(n) = (11·n + 4)³. A17439

Triangle read by rows: T(n,k) is the number of forests of labeled rooted Greg hypertrees with n white vertices and k black vertices, 0 <= k < n. A370949

Triangle of coefficient of the series reversion in t of the power series (exp(log(1+t·x)/x)-1)*exp(-t) as an e.g.f. A364708

Triangle read by rows: T(n,k) is the number of labeled forests of rooted Greg hypertrees with n white vertices and weight k, 0 <= k < n. A370948