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28701714 = 2337129287
BaseRepresentation
bin110110101111…
…1010000010010
32000000012100110
41231133100102
524321423324
62503102150
7465650316
oct155372022
960005313
1028701714
1115224028
129741956
135c3c082
143b51b46
1527be329
hex1b5f412

28701714 has 16 divisors (see below), whose sum is σ = 58955328. Its totient is φ = 9308592.

The previous prime is 28701703. The next prime is 28701719. The reversal of 28701714 is 41710782.

It is not an unprimeable number, because it can be changed into a prime (28701719) 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, 64422 + ... + 64865.

It is an arithmetic number, because the mean of its divisors is an integer number (3684708).

Almost surely, 228701714 is an apocalyptic number.

28701714 is an abundant number, since it is smaller than the sum of its proper divisors (30253614).

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

28701714 is a wasteful number, since it uses less digits than its factorization.

28701714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129329.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 28701714 is about 5357.3980624926. The cubic root of 28701714 is about 306.1746834641.

The spelling of 28701714 in words is "twenty-eight million, seven hundred one thousand, seven hundred fourteen".

Divisors: 1 2 3 6 37 74 111 222 129287 258574 387861 775722 4783619 9567238 14350857 28701714