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528128248 = 2366016031
BaseRepresentation
bin11111011110101…
…001100011111000
31100210202200202111
4133132221203320
52040200100443
6124223342104
716042005334
oct3736514370
91323680674
10528128248
1125112962a
12128a51934
138555312b
14501d87c4
153157269d
hex1f7a98f8

528128248 has 8 divisors (see below), whose sum is σ = 990240480. Its totient is φ = 264064120.

The previous prime is 528128243. The next prime is 528128261. The reversal of 528128248 is 842821825.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 528128248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528128243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33008008 + ... + 33008023.

It is an arithmetic number, because the mean of its divisors is an integer number (123780060).

Almost surely, 2528128248 is an apocalyptic number.

It is an amenable number.

528128248 is a deficient number, since it is larger than the sum of its proper divisors (462112232).

528128248 is a wasteful number, since it uses less digits than its factorization.

528128248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66016037 (or 66016033 counting only the distinct ones).

The product of its digits is 81920, while the sum is 40.

The square root of 528128248 is about 22981.0410556180. The cubic root of 528128248 is about 808.3134383408.

The spelling of 528128248 in words is "five hundred twenty-eight million, one hundred twenty-eight thousand, two hundred forty-eight".

Divisors: 1 2 4 8 66016031 132032062 264064124 528128248