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38509020968 = 2311437602511
BaseRepresentation
bin100011110111010100…
…010000011100101000
310200101202111221202212
4203313110100130220
51112331302132333
625405113544252
72532201164105
oct436724203450
9120352457685
1038509020968
111537137a470
127568715088
1338291cb352
141c14575aac
151005b70448
hex8f7510728

38509020968 has 16 divisors (see below), whose sum is σ = 78768452160. Its totient is φ = 17504100400.

The previous prime is 38509020947. The next prime is 38509020997. The reversal of 38509020968 is 86902090583.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218801168 + ... + 218801343.

It is an arithmetic number, because the mean of its divisors is an integer number (4923028260).

Almost surely, 238509020968 is an apocalyptic number.

It is an amenable number.

38509020968 is an abundant number, since it is smaller than the sum of its proper divisors (40259431192).

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

38509020968 is a wasteful number, since it uses less digits than its factorization.

38509020968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437602528 (or 437602524 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 38509020968 in words is "thirty-eight billion, five hundred nine million, twenty thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 11 22 44 88 437602511 875205022 1750410044 3500820088 4813627621 9627255242 19254510484 38509020968