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28735041 = 338924623
BaseRepresentation
bin110110110011…
…1011001000001
32000001220001210
41231213121001
524324010131
62503520333
7466146426
oct155473101
960056053
1028735041
1115247075
1297590a9
135c512aa
143b5dd4d
1527c9146
hex1b67641

28735041 has 8 divisors (see below), whose sum is σ = 38413440. Its totient is φ = 19106672.

The previous prime is 28735039. The next prime is 28735079. The reversal of 28735041 is 14053782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28735041 - 21 = 28735039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28735141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11145 + ... + 13478.

It is an arithmetic number, because the mean of its divisors is an integer number (4801680).

Almost surely, 228735041 is an apocalyptic number.

It is an amenable number.

28735041 is a deficient number, since it is larger than the sum of its proper divisors (9678399).

28735041 is a wasteful number, since it uses less digits than its factorization.

28735041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25015.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 28735041 is about 5360.5075319414. The cubic root of 28735041 is about 306.2931425546.

The spelling of 28735041 in words is "twenty-eight million, seven hundred thirty-five thousand, forty-one".

Divisors: 1 3 389 1167 24623 73869 9578347 28735041