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28831314 = 2343111149
BaseRepresentation
bin110110111111…
…0111001010010
32000020210010110
41231332321102
524340100224
62505542150
7500030211
oct155767122
960223113
1028831314
1115302436
1297a4956
135c86065
143b87078
1527e7929
hex1b7ee52

28831314 has 16 divisors (see below), whose sum is σ = 57801600. Its totient is φ = 9587280.

The previous prime is 28831301. The next prime is 28831321. The reversal of 28831314 is 41313882.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2989 + ... + 8160.

It is an arithmetic number, because the mean of its divisors is an integer number (3612600).

Almost surely, 228831314 is an apocalyptic number.

28831314 is an abundant number, since it is smaller than the sum of its proper divisors (28970286).

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

28831314 is a wasteful number, since it uses less digits than its factorization.

28831314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11585.

The product of its digits is 4608, while the sum is 30.

The square root of 28831314 is about 5369.4798630780. The cubic root of 28831314 is about 306.6348262993.

The spelling of 28831314 in words is "twenty-eight million, eight hundred thirty-one thousand, three hundred fourteen".

Divisors: 1 2 3 6 431 862 1293 2586 11149 22298 33447 66894 4805219 9610438 14415657 28831314