Properties of the Number 39430

Thirty-Nine Thousand Four Hundred Thirty

Basics

Value: 39429 → 39430 → 39431

Parity: even

Prime: No

Previous Prime: 39419

Next Prime: 39439

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 3943

Divisors: 1, 2, 5, 10, 3943, 7886, 19715, 39430

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001101000000110

Octal: 115006

Duodecimal: 1A99A

Hexadecimal: 9a06

Square: 1554724900

Square Root: 198.5698869416005

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

Triangle of coefficients of (1 - x)ⁿ*U(n,-(3·x - 2)/(2·x - 2)), where U(n,x) is the n-th Chebyshev polynomial of the second kind. A123027

Convolved Fibonacci numbers. A1874

Numbers k such that 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*p(k+5)*p(k+6)-1 and 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*p(k+5)*p(k+6)+1 are twin primes with p(h) = h-th prime. A129313

a(n) = max T(n,k), with T as in A037027. A38149

Number of distinct non-extendable sequences (x(1),x(2),...,x(k)) such that each x(i) is in {1,2,...,n} and (x(j) AND x(i)) <> x(j) for i=2..k, j=1..i-1. A53623

Sum of staircase twin primes according to the rule: top·bottom + next top. A135286

Numbers whose base-10 representation has the same nonzero number of 5's and 8's. A39430