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129052296928 = 25171621146347
BaseRepresentation
bin111100000110000011…
…1011100011011100000
3110100002212122221102001
41320030013130123200
54103244342000203
6135141422333344
712216015265432
oct1701407343340
9410085587361
10129052296928
114a804725855
122101742a254
13c228748399
146363692652
153554a6291d
hex1e0c1dc6e0

129052296928 has 48 divisors (see below), whose sum is σ = 269184901104. Its totient is φ = 60692613120.

The previous prime is 129052296881. The next prime is 129052296937. The reversal of 129052296928 is 829692250921.

129052296928 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808651 + ... + 954997.

It is an arithmetic number, because the mean of its divisors is an integer number (5608018773).

Almost surely, 2129052296928 is an apocalyptic number.

It is an amenable number.

129052296928 is an abundant number, since it is smaller than the sum of its proper divisors (140132604176).

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

129052296928 is a wasteful number, since it uses less digits than its factorization.

129052296928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147995 (or 147987 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 129052296928 in words is "one hundred twenty-nine billion, fifty-two million, two hundred ninety-six thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 1621 3242 6484 12968 25936 27557 51872 55114 110228 146347 220456 292694 440912 585388 881824 1170776 2341552 2487899 4683104 4975798 9951596 19903192 39806384 79612768 237228487 474456974 948913948 1897827896 3795655792 4032884279 7591311584 8065768558 16131537116 32263074232 64526148464 129052296928