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128853975112 = 2323977219519
BaseRepresentation
bin111100000000001001…
…0111010000001001000
3110022121001111011000121
41320000102322001020
54102343104200422
6135110015513024
712211056500632
oct1700022720110
9408531434017
10128853975112
114a712789725
1220b80b28774
13c1c662abb5
1463451c9a52
15354243a8c7
hex1e004ba048

128853975112 has 32 divisors (see below), whose sum is σ = 254704665600. Its totient is φ = 60990488064.

The previous prime is 128853975007. The next prime is 128853975113. The reversal of 128853975112 is 211579358821.

It is a self number, because there is not a number n which added to its sum of digits gives 128853975112.

It is not an unprimeable number, because it can be changed into a prime (128853975113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3591912 + ... + 3627607.

It is an arithmetic number, because the mean of its divisors is an integer number (7959520800).

Almost surely, 2128853975112 is an apocalyptic number.

It is an amenable number.

128853975112 is a deficient number, since it is larger than the sum of its proper divisors (125850690488).

128853975112 is a wasteful number, since it uses less digits than its factorization.

128853975112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7219645 (or 7219641 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 52.

The spelling of 128853975112 in words is "one hundred twenty-eight billion, eight hundred fifty-three million, nine hundred seventy-five thousand, one hundred twelve".

Divisors: 1 2 4 8 23 46 92 97 184 194 388 776 2231 4462 8924 17848 7219519 14439038 28878076 57756152 166048937 332097874 664195748 700293343 1328391496 1400586686 2801173372 5602346744 16106746889 32213493778 64426987556 128853975112