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39120028 = 2258716661
BaseRepresentation
bin1001010100111…
…0110010011100
32201121111120221
42111032302130
540003320103
63514251124
7653341363
oct225166234
981544527
1039120028
112009a502
1211126aa4
13814915c
1452a47da
15367b1bd
hex254ec9c

39120028 has 12 divisors (see below), whose sum is σ = 68580792. Its totient is φ = 19525520.

The previous prime is 39120007. The next prime is 39120041. The reversal of 39120028 is 82002193.

39120028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 39119984 and 39120011.

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, 5983 + ... + 10678.

It is an arithmetic number, because the mean of its divisors is an integer number (5715066).

Almost surely, 239120028 is an apocalyptic number.

It is an amenable number.

39120028 is a deficient number, since it is larger than the sum of its proper divisors (29460764).

39120028 is a wasteful number, since it uses less digits than its factorization.

39120028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17252 (or 17250 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 39120028 is about 6254.6005467975. The cubic root of 39120028 is about 339.4686857244.

The spelling of 39120028 in words is "thirty-nine million, one hundred twenty thousand, twenty-eight".

Divisors: 1 2 4 587 1174 2348 16661 33322 66644 9780007 19560014 39120028