Properties of the Number 27047

Twenty-Seven Thousand Forty-Seven

Basics

Value: 27046 → 27047 → 27048

Parity: odd

Prime: No

Previous Prime: 27043

Next Prime: 27059

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 17 × 37 × 43

Divisors: 1, 17, 37, 43, 629, 731, 1591, 27047

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110100110100111

Octal: 64647

Duodecimal: 1379B

Hexadecimal: 69a7

Square: 731540209

Square Root: 164.4597215125941

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

Numbers m that divide A177754(m) = ∑_k=1..m uphi(k), where uphi is the unitary totient function (A047994). A306950

Triangle read by rows: T(n, k) is the number of k-dimensional subspaces in (F₃)ⁿ, counted up to coordinate permutation (n >= 0, 0 <= k <= n). A347970

Expansion of ∏_k>=0 1/(1 + x^3·k+1)^3·k+1. A285286

a(n) = A077708(n+1)/A077708(n). A77709

Diagonal sums of the number triangle A098505. A98507

Number of maximum matchings in the n-Andrásfai graph. A297535

a(n) = ∑_k=0..2n-1 T(n,k) * T(n,k+1), with T given by A027023. A27047