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18630694082 = 27111371131071
BaseRepresentation
bin10001010110011110…
…011101010011000010
31210002101221022122202
4101112132131103002
5301123424202312
612320412233202
71226454200240
oct212636352302
953071838582
1018630694082
1179a05a5240
12373b46b802
1319abab5050
14c8a4c3790
1574093a9c2
hex45679d4c2

18630694082 has 64 divisors (see below), whose sum is σ = 38050725888. Its totient is φ = 6605928000.

The previous prime is 18630694079. The next prime is 18630694099. The reversal of 18630694082 is 28049603681.

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 31 ways as a sum of consecutive naturals, for example, 76607 + ... + 207677.

It is an arithmetic number, because the mean of its divisors is an integer number (594542592).

Almost surely, 218630694082 is an apocalyptic number.

18630694082 is an abundant number, since it is smaller than the sum of its proper divisors (19420031806).

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

18630694082 is a wasteful number, since it uses less digits than its factorization.

18630694082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131175.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 18630694082 in words is "eighteen billion, six hundred thirty million, six hundred ninety-four thousand, eighty-two".

Divisors: 1 2 7 11 13 14 22 26 71 77 91 142 143 154 182 286 497 781 923 994 1001 1562 1846 2002 5467 6461 10153 10934 12922 20306 71071 131071 142142 262142 917497 1441781 1703923 1834994 2883562 3407846 9306041 10092467 11927461 18612082 18743153 20184934 23854922 37486306 65142287 102366451 120978533 130284574 131202071 204732902 241957066 262404142 716565157 846849731 1330763863 1433130314 1693699462 2661527726 9315347041 18630694082