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19990792146195 = 32513313109176659
BaseRepresentation
bin1001000101110011110000…
…00100001000110100010011
32121210002201200021001211100
410202321320010020310103
510110012120242134240
6110303350525515443
74132200315403023
oct442717004106423
977702650231740
1019990792146195
11640805800a202
1222aa423a12b83
13b2017b759730
144d17b93bba83
1524a0167ece30
hex122e78108d13

19990792146195 has 48 divisors (see below), whose sum is σ = 37435366594080. Its totient is φ = 9810177781248.

The previous prime is 19990792146179. The next prime is 19990792146223. The reversal of 19990792146195 is 59164129709991.

19990792146195 is a `hidden beast` number, since 1 + 9 + 9 + 9 + 0 + 79 + 2 + 1 + 461 + 95 = 666.

It is not a de Polignac number, because 19990792146195 - 24 = 19990792146179 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54405225 + ... + 54771434.

It is an arithmetic number, because the mean of its divisors is an integer number (779903470710).

Almost surely, 219990792146195 is an apocalyptic number.

19990792146195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19990792146195 is a deficient number, since it is larger than the sum of its proper divisors (17444574447885).

19990792146195 is a wasteful number, since it uses less digits than its factorization.

19990792146195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109176996 (or 109176993 counting only the distinct ones).

The product of its (nonzero) digits is 99202320, while the sum is 72.

The spelling of 19990792146195 in words is "nineteen trillion, nine hundred ninety billion, seven hundred ninety-two million, one hundred forty-six thousand, one hundred ninety-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 313 585 939 1565 2817 4069 4695 12207 14085 20345 36621 61035 183105 109176659 327529977 545883295 982589931 1419296567 1637649885 4257889701 4912949655 7096482835 12773669103 21289448505 34172294267 63868345515 102516882801 170861471335 307550648403 444239825471 512584414005 1332719476413 1537753242015 2221199127355 3998158429239 6663597382065 19990792146195