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120907851872 = 255371290007
BaseRepresentation
bin111000010011010101…
…0110110100001100000
3102120002021110021010212
41300212222312201200
53440104402224442
6131313322513252
711510131532603
oct1604652664140
9376067407125
10120907851872
114730536a725
121b523965828
13b52b2cc922
145bcdb4833a
153229a33a82
hex1c26ab6860

120907851872 has 24 divisors (see below), whose sum is σ = 242528607216. Its totient is φ = 59313284992.

The previous prime is 120907851853. The next prime is 120907851919. The reversal of 120907851872 is 278158709021.

It is a self number, because there is not a number n which added to its sum of digits gives 120907851872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35643308 + ... + 35646699.

It is an arithmetic number, because the mean of its divisors is an integer number (10105358634).

Almost surely, 2120907851872 is an apocalyptic number.

It is an amenable number.

120907851872 is an abundant number, since it is smaller than the sum of its proper divisors (121620755344).

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

120907851872 is an equidigital number, since it uses as much as digits as its factorization.

120907851872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71290070 (or 71290062 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 50.

The spelling of 120907851872 in words is "one hundred twenty billion, nine hundred seven million, eight hundred fifty-one thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 16 32 53 106 212 424 848 1696 71290007 142580014 285160028 570320056 1140640112 2281280224 3778370371 7556740742 15113481484 30226962968 60453925936 120907851872