ℕ atory
Play Now

Properties of the Number 18199

Eighteen Thousand One Hundred Ninety-Nine

Basics

Value: 18198 → 18199 → 18200

Parity: odd

Prime: Yes

Previous Prime: 18191

Next Prime: 18211

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 18199

Divisors: 1, 18199

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100011100010111

Octal: 43427

Duodecimal: A647

Hexadecimal: 4717

Square: 331203601

Square Root: 134.90366933482574

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 having only {1, 8, 9} as digits. A385783
Primes p such that p-1 and p+1 each contain at least one cubed prime in their prime factorization. A162870
Numbers k such that 11k - 10k is prime. A62577
Number of non-isomorphic multiset partitions of weight n in which all parts are aperiodic multisets. A320803
Number of step cyclic shifted sequence structures using a maximum of four different symbols. A56431
Expansion of x*(x+1) / (x2-26·x+1). A157461
Primes p such that p + 4, p + 16, p + 64, p + 256 and p + 1024 are all semiprimes. A241493
a(1) = 2; a(n + 1) = smallest prime > a(n) such that a(n + 1) - a(n) is the product of 7 primes. A285692
Fixed points when A001414 is iterated and started at factorials of prime numbers. A82086
Primes of the form (prime(prime(k)) + prime(prime(k+1)))/2. A98042