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128068474 = 2196475209
BaseRepresentation
bin1111010001000…
…10101101111010
322220222112220211
413220202231322
5230241142344
620412541334
73113364322
oct750425572
9286875824
10128068474
1166322816
1236a8184a
13206c0581
141301a282
15b39b334
hex7a22b7a

128068474 has 16 divisors (see below), whose sum is σ = 202564800. Its totient is φ = 60558624.

The previous prime is 128068453. The next prime is 128068477. The reversal of 128068474 is 474860821.

It is not an unprimeable number, because it can be changed into a prime (128068477) 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, 21982 + ... + 27190.

It is an arithmetic number, because the mean of its divisors is an integer number (12660300).

Almost surely, 2128068474 is an apocalyptic number.

128068474 is a deficient number, since it is larger than the sum of its proper divisors (74496326).

128068474 is a wasteful number, since it uses less digits than its factorization.

128068474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5877.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 128068474 is about 11316.7342462391. The cubic root of 128068474 is about 504.0582704316.

The spelling of 128068474 in words is "one hundred twenty-eight million, sixty-eight thousand, four hundred seventy-four".

Divisors: 1 2 19 38 647 1294 5209 10418 12293 24586 98971 197942 3370223 6740446 64034237 128068474