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75019012 = 2241457433
BaseRepresentation
bin1000111100010…
…11001100000100
312020011100201221
410132023030010
5123201102022
611235530124
71600436215
oct436131404
9166140657
1075019012
1139389992
1221159944
1312708163
149d6b40c
1568bccc7
hex478b304

75019012 has 12 divisors (see below), whose sum is σ = 134485596. Its totient is φ = 36594560.

The previous prime is 75018997. The next prime is 75019013. The reversal of 75019012 is 21091057.

It can be written as a sum of positive squares in 2 ways, for example, as 33339076 + 41679936 = 5774^2 + 6456^2 .

It is a super-2 number, since 2×750190122 = 11255704322912288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75019013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228553 + ... + 228880.

It is an arithmetic number, because the mean of its divisors is an integer number (11207133).

Almost surely, 275019012 is an apocalyptic number.

It is an amenable number.

75019012 is a deficient number, since it is larger than the sum of its proper divisors (59466584).

75019012 is a wasteful number, since it uses less digits than its factorization.

75019012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457478 (or 457476 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 75019012 is about 8661.3516266227. The cubic root of 75019012 is about 421.7519637333.

The spelling of 75019012 in words is "seventy-five million, nineteen thousand, twelve".

Divisors: 1 2 4 41 82 164 457433 914866 1829732 18754753 37509506 75019012