Properties of the Number 27955

Twenty-Seven Thousand Nine Hundred Fifty-Five

Basics

Value: 27954 → 27955 → 27956

Parity: odd

Prime: No

Previous Prime: 27953

Next Prime: 27961

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 × 5591

Divisors: 1, 5, 5591, 27955

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110100110011

Octal: 66463

Duodecimal: 14217

Hexadecimal: 6d33

Square: 781482025

Square Root: 167.19748801940776

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

Number of numbers in row n of the array at A243928. A243930

Numbers k such that 7*(10^k - 1)/9 - 3·10^floor(k/2) is a palindromic wing prime (also known as near-repdigit palindromic prime). A77781

Greatest number m such that the fractional part of (1024/1000)^A153677(n) <= 1/m. A153681

Odd numbers k such that ∑_{j=1..(k-1)/2, gcd(j,k)=1} 1/j == -2·q₂(k) + k·q₂(k)² (mod k³), where q₂(k) = (2^φ(k) - 1)/k is the Euler quotient of k to base 2. A329706

a(n) = T(2n+1, n+3), T given by A027948. A27955

Numbers k at which the ratio r(k) = (k-th prime) / (average of first k primes) reaches a record high. A301599