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28826331 = 334727691
BaseRepresentation
bin110110111110…
…1101011011011
32000020112021220
41231331223123
524334420311
62505503123
7500006532
oct155755333
960215256
1028826331
11152a9716
1297a1aa3
135c83a01
143b85319
1527e6206
hex1b7dadb

28826331 has 8 divisors (see below), whose sum is σ = 38547264. Its totient is φ = 19161480.

The previous prime is 28826267. The next prime is 28826351. The reversal of 28826331 is 13362882.

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

It is not a de Polignac number, because 28826331 - 26 = 28826267 is a prime.

It is a super-2 number, since 2×288263312 = 1661914717843122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28826292 and 28826301.

It is not an unprimeable number, because it can be changed into a prime (28826351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12805 + ... + 14886.

It is an arithmetic number, because the mean of its divisors is an integer number (4818408).

Almost surely, 228826331 is an apocalyptic number.

28826331 is a deficient number, since it is larger than the sum of its proper divisors (9720933).

28826331 is a wasteful number, since it uses less digits than its factorization.

28826331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28041.

The product of its digits is 13824, while the sum is 33.

The square root of 28826331 is about 5369.0158316027. The cubic root of 28826331 is about 306.6171597514.

The spelling of 28826331 in words is "twenty-eight million, eight hundred twenty-six thousand, three hundred thirty-one".

Divisors: 1 3 347 1041 27691 83073 9608777 28826331