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28850319 = 3211932687
BaseRepresentation
bin110111000001…
…1100010001111
32000021202012100
41232003202033
524341202234
62510210143
7500136501
oct156034217
960252170
1028850319
1115315743
1297b3953
135c918c4
143b8dd71
1527ed399
hex1b8388f

28850319 has 12 divisors (see below), whose sum is σ = 41723136. Its totient is φ = 19210272.

The previous prime is 28850287. The next prime is 28850321. The reversal of 28850319 is 91305882.

It is not a de Polignac number, because 28850319 - 25 = 28850287 is a prime.

It is a super-2 number, since 2×288503192 = 1664681812803522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28850399) 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 11 ways as a sum of consecutive naturals, for example, 9394 + ... + 12080.

It is an arithmetic number, because the mean of its divisors is an integer number (3476928).

Almost surely, 228850319 is an apocalyptic number.

28850319 is a deficient number, since it is larger than the sum of its proper divisors (12872817).

28850319 is a wasteful number, since it uses less digits than its factorization.

28850319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886 (or 3883 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 28850319 is about 5371.2492960204. The cubic root of 28850319 is about 306.7021872582.

The spelling of 28850319 in words is "twenty-eight million, eight hundred fifty thousand, three hundred nineteen".

Divisors: 1 3 9 1193 2687 3579 8061 10737 24183 3205591 9616773 28850319