Properties of the Number 18427

Eighteen Thousand Four Hundred Twenty-Seven

Basics

Value: 18426 → 18427 → 18428

Parity: odd

Prime: Yes

Previous Prime: 18413

Next Prime: 18433

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 18427

Divisors: 1, 18427

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 100011111111011

Octal: 43773

Duodecimal: A7B7

Hexadecimal: 47fb

Square: 339554329

Square Root: 135.7460864997588

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

Primes that are the sum of 25 consecutive primes. A215991

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 = [6, 6, 4]; short d-string notation of pattern = [664]. A78858

Smallest primitive prime factor of 9ⁿ-1. A379642

Smallest odd prime factor of 3ⁿ + 1, for n > 1. A235365

Primes p such that 10p+1 divides 2^p-1. A188133

Primes equal to a pentagonal number plus 1. A285789

Primes of the form 2n² - 5. A201713

Number of multiset partitions of integer partitions of n where all parts have the same product. A320886

Primes congruent to 19 mod 59. A142746

Odd primes of the form (1+n)*(2+2·n)+n*(3+2·n) = 4·n²+7·n+2. A171749