Search a number
-
+
18314296818 = 237938637757
BaseRepresentation
bin10001000011100111…
…011111110111110010
31202021100120200012120
4101003213133313302
5300001424444233
612225150535110
71215562645236
oct210347376762
952240520176
1018314296818
117848a412a4
123671507496
13195b39592c
14c5a4825c6
15722c8d4b3
hex4439dfdf2

18314296818 has 16 divisors (see below), whose sum is σ = 37092247680. Its totient is φ = 6027489936.

The previous prime is 18314296817. The next prime is 18314296829. The reversal of 18314296818 is 81869241381.

It is not an unprimeable number, because it can be changed into a prime (18314296813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19318405 + ... + 19319352.

It is an arithmetic number, because the mean of its divisors is an integer number (2318265480).

Almost surely, 218314296818 is an apocalyptic number.

18314296818 is an abundant number, since it is smaller than the sum of its proper divisors (18777950862).

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

18314296818 is a wasteful number, since it uses less digits than its factorization.

18314296818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38637841.

The product of its digits is 663552, while the sum is 51.

The spelling of 18314296818 in words is "eighteen billion, three hundred fourteen million, two hundred ninety-six thousand, eight hundred eighteen".

Divisors: 1 2 3 6 79 158 237 474 38637757 77275514 115913271 231826542 3052382803 6104765606 9157148409 18314296818