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19384830392212 = 2271277274189899
BaseRepresentation
bin1000110100001011000011…
…11011011111011110010100
32112122011122011022112100001
410122011201323133132110
510020100113040022322
6105121133530301044
74040336111441035
oct432054173373624
975564564275301
1019384830392212
1161a40734386aa
122210ab0587784
13aa7c9b93485c
144b0333442a8c
1523939d39e827
hex11a161edf794

19384830392212 has 48 divisors (see below), whose sum is σ = 34538420649600. Its totient is φ = 9517824892800.

The previous prime is 19384830392159. The next prime is 19384830392231. The reversal of 19384830392212 is 21229303848391.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215584039 + ... + 215673937.

It is an arithmetic number, because the mean of its divisors is an integer number (719550430200).

Almost surely, 219384830392212 is an apocalyptic number.

It is an amenable number.

19384830392212 is a deficient number, since it is larger than the sum of its proper divisors (15153590257388).

19384830392212 is a wasteful number, since it uses less digits than its factorization.

19384830392212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92992 (or 92990 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 19384830392212 in words is "nineteen trillion, three hundred eighty-four billion, eight hundred thirty million, three hundred ninety-two thousand, two hundred twelve".

Divisors: 1 2 4 71 142 277 284 554 1108 2741 5482 10964 19667 39334 78668 89899 179798 194611 359596 389222 759257 778444 1518514 3037028 6382829 12765658 24902023 25531316 49804046 53907247 99608092 107814494 215628988 246413159 492826318 985652636 1768043633 3536087266 7072174532 17495334289 34990668578 68256445043 69981337156 136512890086 273025780172 4846207598053 9692415196106 19384830392212