Properties of the Number 27445

Twenty-Seven Thousand Four Hundred Forty-Five

Basics

Value: 27444 → 27445 → 27446

Parity: odd

Prime: No

Previous Prime: 27437

Next Prime: 27449

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 11 × 499

Divisors: 1, 5, 11, 55, 499, 2495, 5489, 27445

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110101100110101

Octal: 65465

Duodecimal: 13A71

Hexadecimal: 6b35

Square: 753228025

Square Root: 165.66532527961306

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

G.f.: exp( ∑_n>=1 (3·n)!/(3!*n!³) * xⁿ/n ). A229452

Sums of members of groups in A076063. A76066

Number of partitions of n with at most two even parts. A96778

Number of compositions of n, where the difference between the number of odd parts and the number of even parts is 5. A242503

a(n)= least number k > a(n-1) such that k*(2^p-1)*(k*(2^p-1)+1)-1 is prime, where p = A000043(n) = Mersenne exponents. A200655

Smallest number k >= A000043(n) such that k·A000668(n)*(k·A000668(n)+1)-1 is prime. A249509

G.f.: exp( ∑_n>=1 (3·n)!/n!³ * xⁿ/n ). A229451

Central values of the n-th discrete Chebyshev polynomials of order 2n. A245086

a(n) = n⁴ + n³ + n² + n. A27445