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128675903274 = 2328980322037
BaseRepresentation
bin111011111010110101…
…1100111011100101010
3110022010122102011101100
41313311223213130222
54102012012401044
6135040215102230
712203465063022
oct1676553473452
9408118364340
10128675903274
114a631213716
1220b31371976
13c198780849
1463296b4a82
1535319b3869
hex1df5ae772a

128675903274 has 24 divisors (see below), whose sum is σ = 281930353380. Its totient is φ = 42410035008.

The previous prime is 128675903249. The next prime is 128675903351. The reversal of 128675903274 is 472309576821.

It is a happy number.

128675903274 is a `hidden beast` number, since 1 + 28 + 6 + 7 + 590 + 3 + 27 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 125539119225 + 3136784049 = 354315^2 + 56007^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 128675903274.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40159417 + ... + 40162620.

It is a 1-persistent number, because it is pandigital, but 2⋅128675903274 = 257351806548 is not.

Almost surely, 2128675903274 is an apocalyptic number.

128675903274 is an abundant number, since it is smaller than the sum of its proper divisors (153254450106).

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

128675903274 is a wasteful number, since it uses less digits than its factorization.

128675903274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80322134 (or 80322131 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 128675903274 in words is "one hundred twenty-eight billion, six hundred seventy-five million, nine hundred three thousand, two hundred seventy-four".

Divisors: 1 2 3 6 9 18 89 178 267 534 801 1602 80322037 160644074 240966111 481932222 722898333 1445796666 7148661293 14297322586 21445983879 42891967758 64337951637 128675903274