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38728088 = 237691573
BaseRepresentation
bin1001001110111…
…1000110011000
32200212120221122
42103233012120
534403244323
63502024412
7650116610
oct223570630
980776848
1038728088
111a951a93
1210b78108
13803c939
145201a40
1535eeec8
hex24ef198

38728088 has 16 divisors (see below), whose sum is σ = 82988880. Its totient is φ = 16597728.

The previous prime is 38728043. The next prime is 38728093. The reversal of 38728088 is 88082783.

38728088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345731 + ... + 345842.

It is an arithmetic number, because the mean of its divisors is an integer number (5186805).

Almost surely, 238728088 is an apocalyptic number.

It is an amenable number.

38728088 is an abundant number, since it is smaller than the sum of its proper divisors (44260792).

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

38728088 is a wasteful number, since it uses less digits than its factorization.

38728088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691586 (or 691582 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 38728088 is about 6223.1895359213. The cubic root of 38728088 is about 338.3311764013.

The spelling of 38728088 in words is "thirty-eight million, seven hundred twenty-eight thousand, eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 691573 1383146 2766292 4841011 5532584 9682022 19364044 38728088