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120081942728 = 23117119219261
BaseRepresentation
bin110111111010101110…
…0010000100011001000
3102110221201100201210022
41233311130100203020
53431411434131403
6131055340440012
711450512446326
oct1576534204310
9373851321708
10120081942728
1146a21142990
121b333249008
13b429177aa7
145b52196d16
1531cc28ed38
hex1bf57108c8

120081942728 has 32 divisors (see below), whose sum is σ = 249081635520. Its totient is φ = 53813928000.

The previous prime is 120081942671. The next prime is 120081942737. The reversal of 120081942728 is 827249180021.

120081942728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 9603383 + ... + 9615878.

It is an arithmetic number, because the mean of its divisors is an integer number (7783801110).

Almost surely, 2120081942728 is an apocalyptic number.

It is an amenable number.

120081942728 is an abundant number, since it is smaller than the sum of its proper divisors (128999692792).

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

120081942728 is a wasteful number, since it uses less digits than its factorization.

120081942728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19219349 (or 19219345 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 120081942728 in words is "one hundred twenty billion, eighty-one million, nine hundred forty-two thousand, seven hundred twenty-eight".

Divisors: 1 2 4 8 11 22 44 71 88 142 284 568 781 1562 3124 6248 19219261 38438522 76877044 153754088 211411871 422823742 845647484 1364567531 1691294968 2729135062 5458270124 10916540248 15010242841 30020485682 60040971364 120081942728