Properties of the Number 27855

Twenty-Seven Thousand Eight Hundred Fifty-Five

Basics

Value: 27854 → 27855 → 27856

Parity: odd

Prime: No

Previous Prime: 27851

Next Prime: 27883

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 619

Divisors: 1, 3, 5, 9, 15, 45, 619, 1857, 3095, 5571

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110011001111

Octal: 66317

Duodecimal: 14153

Hexadecimal: 6ccf

Square: 775901025

Square Root: 166.89817254841347

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 n such that 2·10ⁿ + 4·R_n + 3 is prime, where R_n = 11...1 is the repunit (A002275) of length n. A102954

Antimutinous numbers: n>1 such that n/p^k < p, where p is the largest prime dividing n and p^k is the highest power of p dividing n. A27855

Even numbers n such that N(n) is divisible by a nontrivial square, say m² with gcd(n,m) = 1, where N(n) is the numerator of the Bernoulli number B(n). The smallest numbers m are given in A094095. A90943