Properties of the Number 27943

Twenty-Seven Thousand Nine Hundred Forty-Three

Basics

Value: 27942 → 27943 → 27944

Parity: odd

Prime: Yes

Previous Prime: 27941

Next Prime: 27947

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 27943

Divisors: 1, 27943

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110100100111

Octal: 66447

Duodecimal: 14207

Hexadecimal: 6d27

Square: 780811249

Square Root: 167.16159846089053

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 terms in n-th derivative of a function composed with itself 3 times. A22811

Primes from merging of 5 successive digits in decimal expansion of e. A104846

Binomial(n,4) - A290447(n). A290461

Primes p for which p + 4, p² + 4 and p³ + 4 are primes. A243734

Primes p such that 10p + 1, 100p + 1 and 1000p + 1 are also primes. A243962

Number of nX4 0..1 arrays with every element equal to 0, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A300678

Number of ordered 5-tuples of integers from [ 1,n ] with no common factors among pairs. A15663

Primes p1 such that p1²+p2³=pp are average of twin primes. p1 and p2 consecutive primes, p1 < p2. A138715

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A300682

Position of first occurrence of n in the continued fraction for the Euler-Mascheroni constant (γ). A224847