Properties of the Number 27791

Twenty-Seven Thousand Seven Hundred Ninety-One

Basics

Value: 27790 → 27791 → 27792

Parity: odd

Prime: Yes

Previous Prime: 27779

Next Prime: 27793

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 27791

Divisors: 1, 27791

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110010001111

Octal: 66217

Duodecimal: 140BB

Hexadecimal: 6c8f

Square: 772339681

Square Root: 166.7063286141231

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

Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[2,6,4]; short d-string notation of pattern = [264]. A78848

Primes of the form p = prime(k) = (prime(k+3)+prime(k-1))/2. A126238

Number of partitions of n containing no part i of multiplicity i-1. A277102

Number of rooted trees with n nodes and 4 leaves. A55279

Primes p such that the differences between the 5 consecutive primes starting with p are (2,6,4,6). A78949

Primes p such that p+2, p+8, and p+12 are all prime. A233540

Integers n such that n+2!, n+2!+3!, n+2!+3!+4!, n+2!+3!+4!+5!, n+2!+3!+4!+5!+6!, and n+2!+3!+4!+5!+6!+7! are all prime. A267123

Primes p such that A276173(p) = p. A276174

Lesser of twin primes p such that p and p+2 are both in A115591. A367318

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 96 ones. A31864