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190768908 = 223112296311
BaseRepresentation
bin10110101111011…
…10011100001100
3111021222001202010
423113232130030
5342314101113
630532501220
74504336401
oct1327563414
9437861663
10190768908
1198758560
1253a7a810
13306a4715
141b49c2a8
1511b341c3
hexb5ee70c

190768908 has 48 divisors (see below), whose sum is σ = 487791360. Its totient is φ = 57547200.

The previous prime is 190768867. The next prime is 190768927. The reversal of 190768908 is 809867091.

It is a happy number.

190768908 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27073 + ... + 33383.

It is an arithmetic number, because the mean of its divisors is an integer number (10162320).

Almost surely, 2190768908 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190768908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243895680).

190768908 is an abundant number, since it is smaller than the sum of its proper divisors (297022452).

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

190768908 is a wasteful number, since it uses less digits than its factorization.

190768908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6558 (or 6556 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 190768908 is about 13811.9118155308. The cubic root of 190768908 is about 575.6641681423.

The spelling of 190768908 in words is "one hundred ninety million, seven hundred sixty-eight thousand, nine hundred eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 229 458 687 916 1374 2519 2748 5038 6311 7557 10076 12622 15114 18933 25244 30228 37866 69421 75732 138842 208263 277684 416526 833052 1445219 2890438 4335657 5780876 8671314 15897409 17342628 31794818 47692227 63589636 95384454 190768908