Properties of the Number 27865

Twenty-Seven Thousand Eight Hundred Sixty-Five

Basics

Value: 27864 → 27865 → 27866

Parity: odd

Prime: No

Previous Prime: 27851

Next Prime: 27883

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 × 5573

Divisors: 1, 5, 5573, 27865

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110110011011001

Octal: 66331

Duodecimal: 14161

Hexadecimal: 6cd9

Square: 776458225

Square Root: 166.9281282468596

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

Sum of the largest parts of the partitions of n into 9 squarefree parts. A326532

Triangle of coefficients of Gaussian polynomials [2n+5,5]_q represented as finite sum of terms (1+q²)^k*q^g-k, where k = 0,1,...,g with g=5n. A267485

a(n) = prime(n) * prime(n+2) - 2·prime(n+1). A152532

a(n) is the number of partitions of 72·n + 42 into 10 odd squares. A323891

Sums of six consecutive squares: a(n) = n² + (n+1)² + (n+2)² + (n+3)² + (n+4)² + (n+5)². A27865

Equals two maps: number of nX2 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal, vertical and antidiagonal neighbors in a random 0..3 nX2 array. A220529