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168982267007784 = 23320648934098319
BaseRepresentation
bin100110011011000000111111…
…111111111001001100101000
3211011022112202201202112101210
4212123000333333321030220
5134122101140323222114
61355221214244113120
750410365051123426
oct4633007777711450
9734275681675353
10168982267007784
114992aa8240493a
1216b51a8b3957a0
137339c61a6c6c9
142da2add06a116
15148093ad39259
hex99b03fff9328

168982267007784 has 32 divisors (see below), whose sum is σ = 422457725808000. Its totient is φ = 56327147897472.

The previous prime is 168982267007773. The next prime is 168982267007837. The reversal of 168982267007784 is 487700762289861.

It is a Smith number, since the sum of its digits (75) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12093424 + ... + 22004895.

It is an arithmetic number, because the mean of its divisors is an integer number (13201803931500).

Almost surely, 2168982267007784 is an apocalyptic number.

It is an amenable number.

168982267007784 is an abundant number, since it is smaller than the sum of its proper divisors (253475458800216).

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

168982267007784 is a wasteful number, since it uses less digits than its factorization.

168982267007784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34304817 (or 34304813 counting only the distinct ones).

The product of its (nonzero) digits is 910393344, while the sum is 75.

The spelling of 168982267007784 in words is "one hundred sixty-eight trillion, nine hundred eighty-two billion, two hundred sixty-seven million, seven thousand, seven hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 24 206489 412978 619467 825956 1238934 1651912 2477868 4955736 34098319 68196638 102294957 136393276 204589914 272786552 409179828 818359656 7040927791991 14081855583982 21122783375973 28163711167964 42245566751946 56327422335928 84491133503892 168982267007784