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75328072 = 2319747797
BaseRepresentation
bin1000111110101…
…10101001001000
312020202001200121
410133112221020
5123240444242
611250313024
71603164241
oct437265110
9166661617
1075328072
1139580106
1221288774
13127b5a31
14a00bcc8
15692e667
hex47d6a48

75328072 has 16 divisors (see below), whose sum is σ = 141960060. Its totient is φ = 37472064.

The previous prime is 75328063. The next prime is 75328079. The reversal of 75328072 is 27082357.

It can be written as a sum of positive squares in 2 ways, for example, as 68326756 + 7001316 = 8266^2 + 2646^2 .

It is not an unprimeable number, because it can be changed into a prime (75328079) 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 3 ways as a sum of consecutive naturals, for example, 22323 + ... + 25474.

Almost surely, 275328072 is an apocalyptic number.

It is an amenable number.

75328072 is a deficient number, since it is larger than the sum of its proper divisors (66631988).

75328072 is a wasteful number, since it uses less digits than its factorization.

75328072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48000 (or 47996 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 75328072 is about 8679.1746151348. The cubic root of 75328072 is about 422.3303418812.

The spelling of 75328072 in words is "seventy-five million, three hundred twenty-eight thousand, seventy-two".

Divisors: 1 2 4 8 197 394 788 1576 47797 95594 191188 382376 9416009 18832018 37664036 75328072