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75270828 = 22361102829
BaseRepresentation
bin1000111110010…
…00101010101100
312020122011011110
410133020222230
5123232131303
611245152020
71602535323
oct437105254
9166564143
1075270828
11395410a6
122125b610
1312795969
149dd50ba
15691c703
hex47c8aac

75270828 has 24 divisors (see below), whose sum is σ = 178512880. Its totient is φ = 24678720.

The previous prime is 75270823. The next prime is 75270857. The reversal of 75270828 is 82807257.

It is not an unprimeable number, because it can be changed into a prime (75270823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50683 + ... + 52146.

Almost surely, 275270828 is an apocalyptic number.

It is an amenable number.

75270828 is an abundant number, since it is smaller than the sum of its proper divisors (103242052).

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

75270828 is a wasteful number, since it uses less digits than its factorization.

75270828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102897 (or 102895 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 75270828 is about 8675.8762093520. The cubic root of 75270828 is about 422.2233343871.

The spelling of 75270828 in words is "seventy-five million, two hundred seventy thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 12 61 122 183 244 366 732 102829 205658 308487 411316 616974 1233948 6272569 12545138 18817707 25090276 37635414 75270828