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18839031126 = 2319557296687
BaseRepresentation
bin10001100010111001…
…001100110101010110
31210121220221221100120
4101202321030311112
5302040242444001
612353213452410
71234564056666
oct214271146526
953556857316
1018839031126
117a98161a13
1237991a1106
131a12ccacc6
14caa0361a6
15753d90236
hex462e4cd56

18839031126 has 32 divisors (see below), whose sum is σ = 39732456960. Its totient is φ = 5938466976.

The previous prime is 18839031109. The next prime is 18839031131. The reversal of 18839031126 is 62113093881.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84846 + ... + 211841.

It is an arithmetic number, because the mean of its divisors is an integer number (1241639280).

Almost surely, 218839031126 is an apocalyptic number.

18839031126 is an abundant number, since it is smaller than the sum of its proper divisors (20893425834).

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

18839031126 is a wasteful number, since it uses less digits than its factorization.

18839031126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297268.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 18839031126 in words is "eighteen billion, eight hundred thirty-nine million, thirty-one thousand, one hundred twenty-six".

Divisors: 1 2 3 6 19 38 57 114 557 1114 1671 3342 10583 21166 31749 63498 296687 593374 890061 1780122 5637053 11274106 16911159 33822318 165254659 330509318 495763977 991527954 3139838521 6279677042 9419515563 18839031126