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28838283 = 371135391
BaseRepresentation
bin110111000000…
…0100110001011
32000021010200120
41232000212023
524340311113
62510034323
7500056425
oct156004613
960233616
1028838283
11153076a1
1297a89a3
135c89296
143b89815
1527e9a23
hex1b8098b

28838283 has 8 divisors (see below), whose sum is σ = 38992896. Its totient is φ = 18954600.

The previous prime is 28838279. The next prime is 28838287. The reversal of 28838283 is 38283882.

It is an interprime number because it is at equal distance from previous prime (28838279) and next prime (28838287).

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

It is not a de Polignac number, because 28838283 - 22 = 28838279 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28838287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67483 + ... + 67908.

It is an arithmetic number, because the mean of its divisors is an integer number (4874112).

Almost surely, 228838283 is an apocalyptic number.

28838283 is a deficient number, since it is larger than the sum of its proper divisors (10154613).

28838283 is a wasteful number, since it uses less digits than its factorization.

28838283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135465.

The product of its digits is 147456, while the sum is 42.

The square root of 28838283 is about 5370.1287694058. The cubic root of 28838283 is about 306.6595305260.

The spelling of 28838283 in words is "twenty-eight million, eight hundred thirty-eight thousand, two hundred eighty-three".

Divisors: 1 3 71 213 135391 406173 9612761 28838283