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128582023974912 = 212351911535897
BaseRepresentation
bin11101001111000111010101…
…110111010001000000000000
3121212021022200022221210200000
4131033013111313101000000
5113323141441114144122
61133245433310400000
736040513264312134
oct3517072567210000
9555238608853600
10128582023974912
1137a7436a453262
1212508083800000
1356993046c34a1
1423a75904073c4
15eceaa82190ac
hex74f1d5dd1000

128582023974912 has 624 divisors, whose sum is σ = 405862458980160. Its totient is φ = 40562753273856.

The previous prime is 128582023974871. The next prime is 128582023974919. The reversal of 128582023974912 is 219479320285821.

128582023974912 is a `hidden beast` number, since 1 + 2 + 8 + 58 + 2 + 0 + 2 + 3 + 97 + 491 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 128582023974912.

It is not an unprimeable number, because it can be changed into a prime (128582023974919) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21804647548 + ... + 21804653444.

It is an arithmetic number, because the mean of its divisors is an integer number (650420607340).

Almost surely, 2128582023974912 is an apocalyptic number.

128582023974912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128582023974912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202931229490080).

128582023974912 is an abundant number, since it is smaller than the sum of its proper divisors (277280435005248).

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

128582023974912 is an equidigital number, since it uses as much as digits as its factorization.

128582023974912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7108 (or 7074 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 128582023974912 in words is "one hundred twenty-eight trillion, five hundred eighty-two billion, twenty-three million, nine hundred seventy-four thousand, nine hundred twelve".