Properties of the Number 27965

Twenty-Seven Thousand Nine Hundred Sixty-Five

Basics

Value: 27964 → 27965 → 27966

Parity: odd

Prime: No

Previous Prime: 27961

Next Prime: 27967

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 5 × 7 × 17 × 47

Divisors: 1, 5, 7, 17, 35, 47, 85, 119, 235, 329

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110100111101

Octal: 66475

Duodecimal: 14225

Hexadecimal: 6d3d

Square: 782041225

Square Root: 167.22739010102381

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

a(n) = n*(n+1)*(4·n+5)/6. A16061

Numbers k such that k and k+1 are the product of exactly four distinct primes. A318896

Ratio of successive row products of triangle A094270: A094273(n+1) / A094273(n). A94274

Let S denote the palindromes in the language {0,1,2,3,4}*; a(n) = number of words of length n in the language SS. A7058

Triangle read by rows: T(n,k) is the number of nonseparable planar maps with 2·n+1 edges and a fixed outer face of 2·k edges which are invariant under a rotation of a 1/2 turn. A91665

Triangle of rooted planar maps, read by rows. A46652

Terms of A050530 with four prime divisors. A53340

Expansion of 1 / (1 - x - x² + x³ - x⁵ + x¹⁵ - x¹⁷ - x¹⁸ + x¹⁹ + x²⁰). A174650

E.g.f. A(x) satisfies: A'(x) = A(x) - 1/A(x) + A(x)³. A243952

Numbers k such that A075255(k) is the square of a prime. A386954