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28895396 = 228778237
BaseRepresentation
bin110111000111…
…0100010100100
32000101001000212
41232032202210
524344123041
62511154552
7500415065
oct156164244
960331025
1028895396
11153465a2
129815a58
135ca928a
143ba256c
15280b8eb
hex1b8e8a4

28895396 has 12 divisors (see below), whose sum is σ = 50630748. Its totient is φ = 14429472.

The previous prime is 28895387. The next prime is 28895401. The reversal of 28895396 is 69359882.

It can be written as a sum of positive squares in 2 ways, for example, as 21529600 + 7365796 = 4640^2 + 2714^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 611 + ... + 7626.

It is an arithmetic number, because the mean of its divisors is an integer number (4219229).

Almost surely, 228895396 is an apocalyptic number.

It is an amenable number.

28895396 is a deficient number, since it is larger than the sum of its proper divisors (21735352).

28895396 is a wasteful number, since it uses less digits than its factorization.

28895396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9118 (or 9116 counting only the distinct ones).

The product of its digits is 933120, while the sum is 50.

The square root of 28895396 is about 5375.4437956321. The cubic root of 28895396 is about 306.8618391077.

The spelling of 28895396 in words is "twenty-eight million, eight hundred ninety-five thousand, three hundred ninety-six".

Divisors: 1 2 4 877 1754 3508 8237 16474 32948 7223849 14447698 28895396