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28896365 = 522925237
BaseRepresentation
bin110111000111…
…0110001101101
32000101002100202
41232032301231
524344140430
62511203245
7500420651
oct156166155
960332322
1028896365
11153472a3
129816525
135ca9854
143ba2a61
15280bd45
hex1b8ec6d

28896365 has 8 divisors (see below), whose sum is σ = 34828440. Its totient is φ = 23015232.

The previous prime is 28896347. The next prime is 28896377. The reversal of 28896365 is 56369882.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12752041 + 16144324 = 3571^2 + 4018^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 28896365 - 210 = 28895341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11474 + ... + 13763.

It is an arithmetic number, because the mean of its divisors is an integer number (4353555).

Almost surely, 228896365 is an apocalyptic number.

It is an amenable number.

28896365 is a deficient number, since it is larger than the sum of its proper divisors (5932075).

28896365 is a wasteful number, since it uses less digits than its factorization.

28896365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25471.

The product of its digits is 622080, while the sum is 47.

The square root of 28896365 is about 5375.5339269695. The cubic root of 28896365 is about 306.8652692482.

The spelling of 28896365 in words is "twenty-eight million, eight hundred ninety-six thousand, three hundred sixty-five".

Divisors: 1 5 229 1145 25237 126185 5779273 28896365