Properties of the Number 18119

Eighteen Thousand One Hundred Nineteen

Basics

Value: 18118 → 18119 → 18120

Parity: odd

Prime: Yes

Previous Prime: 18097

Next Prime: 18121

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 18119

Divisors: 1, 18119

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011011000111

Octal: 43307

Duodecimal: A59B

Hexadecimal: 46c7

Square: 328298161

Square Root: 134.60683489332925

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

Values of n such that L(20) and N(20) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227523

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

Numbers whose least quadratic nonresidue (A020649) is 17. A25026

Primes having only {1, 8, 9} as digits. A385783

Primes that are palindromic in base 9. A29977

Primes in which the digit string can be partitioned into three parts such that the sum of the first two is equal to the third, and the second part is nonzero. A88291

Lesser member p of a twin prime pair (p, p + 2) such that 2p + 3(p + 2) is a perfect square. A174370

Primes p such that p+2 and p³+2 are also prime. A240110

a(n) is smallest safe prime (A005385) such that a(n) + 12·n is the next safe prime, i.e., x = (a(n) - 1)/2 and x + 6·n are closest Sophie Germain primes. A59327

Primes of the form : (p-n)/(n+1)=prime and (n+1)*p+n=prime. n=4. A152294