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28885302 = 233534913
BaseRepresentation
bin110111000110…
…0000100110110
32000100112012000
41232030010312
524343312202
62511040130
7500343465
oct156140466
960315160
1028885302
1115339a56
129810046
135ca47c4
143b9c9dc
15280891c
hex1b8c136

28885302 has 16 divisors (see below), whose sum is σ = 64189680. Its totient is φ = 9628416.

The previous prime is 28885253. The next prime is 28885303. The reversal of 28885302 is 20358882.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28885303) 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, 267403 + ... + 267510.

It is an arithmetic number, because the mean of its divisors is an integer number (4011855).

Almost surely, 228885302 is an apocalyptic number.

28885302 is an abundant number, since it is smaller than the sum of its proper divisors (35304378).

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

28885302 is a wasteful number, since it uses less digits than its factorization.

28885302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534924 (or 534918 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 28885302 is about 5374.5048143992. The cubic root of 28885302 is about 306.8261030323.

The spelling of 28885302 in words is "twenty-eight million, eight hundred eighty-five thousand, three hundred two".

Divisors: 1 2 3 6 9 18 27 54 534913 1069826 1604739 3209478 4814217 9628434 14442651 28885302