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18730853935274 = 2131956367347617
BaseRepresentation
bin1000100001001000111011…
…11001010010100010101010
32110022122121102020100210002
410100210131321102202222
54423341242101412044
6103500500245223002
73642155010330245
oct420443571224252
973278542210702
1018730853935274
115a7178a809108
1221261b9101a62
13a5b409469c40
1448a8146c625c
15227374a1774e
hex11091de528aa

18730853935274 has 32 divisors (see below), whose sum is σ = 31906607503680. Its totient is φ = 8175461801472.

The previous prime is 18730853935267. The next prime is 18730853935351. The reversal of 18730853935274 is 47253935803781.

It is a self number, because there is not a number n which added to its sum of digits gives 18730853935274.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33395687 + ... + 33951930.

It is an arithmetic number, because the mean of its divisors is an integer number (997081484490).

Almost surely, 218730853935274 is an apocalyptic number.

18730853935274 is a deficient number, since it is larger than the sum of its proper divisors (13175753568406).

18730853935274 is a wasteful number, since it uses less digits than its factorization.

18730853935274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67348214.

The product of its (nonzero) digits is 152409600, while the sum is 65.

The spelling of 18730853935274 in words is "eighteen trillion, seven hundred thirty billion, eight hundred fifty-three million, nine hundred thirty-five thousand, two hundred seventy-four".

Divisors: 1 2 13 19 26 38 247 494 563 1126 7319 10697 14638 21394 139061 278122 67347617 134695234 875519021 1279604723 1751038042 2559209446 16634861399 33269722798 37916708371 75833416742 492917208823 720417459049 985834417646 1440834918098 9365426967637 18730853935274