Search a number
-
+
18102212214 = 233017035369
BaseRepresentation
bin10000110110111110…
…011101011001110110
31201201120111122211020
4100312332131121312
5244033131242324
612152133122010
71210406156622
oct206676353166
951646448736
1018102212214
11774a254a69
123612489306
131926469c98
14c3a236182
1570e348679
hex436f9d676

18102212214 has 8 divisors (see below), whose sum is σ = 36204424440. Its totient is φ = 6034070736.

The previous prime is 18102212159. The next prime is 18102212237. The reversal of 18102212214 is 41221220181.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

18102212214 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1508517679 + ... + 1508517690.

It is an arithmetic number, because the mean of its divisors is an integer number (4525553055).

Almost surely, 218102212214 is an apocalyptic number.

18102212214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18102212214 is a wasteful number, since it uses less digits than its factorization.

18102212214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017035374.

The product of its (nonzero) digits is 512, while the sum is 24.

Adding to 18102212214 its reverse (41221220181), we get a palindrome (59323432395).

The spelling of 18102212214 in words is "eighteen billion, one hundred two million, two hundred twelve thousand, two hundred fourteen".

Divisors: 1 2 3 6 3017035369 6034070738 9051106107 18102212214