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28708150 = 252574163
BaseRepresentation
bin110110110000…
…0110100110110
32000000112011211
41231200310312
524322130100
62503152034
7466005142
oct155406466
960015154
1028708150
1115228949
12974561a
135c41c93
143b54222
1527c11ba
hex1b60d36

28708150 has 12 divisors (see below), whose sum is σ = 53397252. Its totient is φ = 11483240.

The previous prime is 28708111. The next prime is 28708181. The reversal of 28708150 is 5180782.

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 5 ways as a sum of consecutive naturals, for example, 287032 + ... + 287131.

It is an arithmetic number, because the mean of its divisors is an integer number (4449771).

Almost surely, 228708150 is an apocalyptic number.

28708150 is a deficient number, since it is larger than the sum of its proper divisors (24689102).

28708150 is a wasteful number, since it uses less digits than its factorization.

28708150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574175 (or 574170 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 28708150 is about 5357.9986935422. The cubic root of 28708150 is about 306.1975670335.

The spelling of 28708150 in words is "twenty-eight million, seven hundred eight thousand, one hundred fifty".

Divisors: 1 2 5 10 25 50 574163 1148326 2870815 5741630 14354075 28708150