Properties of the Number 27993

Twenty-Seven Thousand Nine Hundred Ninety-Three

Basics

Value: 27992 → 27993 → 27994

Parity: odd

Prime: No

Previous Prime: 27983

Next Prime: 27997

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 31 × 43

Divisors: 1, 3, 7, 21, 31, 43, 93, 129, 217, 301

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110110101011001

Octal: 66531

Duodecimal: 14249

Hexadecimal: 6d59

Square: 783608049

Square Root: 167.31108749870702

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 such that there are precisely 19 groups of order m. A298910

T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..2 nXk array. A219128

Expansion of 3*(1+2·x-2·x²)/((1-x)*(1-6·x²)). A26551

Numbers that are repdigits in base 6. A48331

Sum of diving indices of all 4k+3 primes in range ]2ⁿ,2ⁿ⁺¹]. A95106

Numbers which are the product of two S-primes (A057948) in exactly three ways. A343828

a(0)=0, a(1)=1, a(n) = 31·a(n-1) - 29·a(n-2). A84330

a(n) = 3*(6ⁿ - 1)/5. A125682

Ratio A191650(n+1)/A191650(n). A191651

Number of nX5 arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..2 nX5 array. A219125