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75745064 = 23175211069
BaseRepresentation
bin1001000001111…
…00011100101000
312021112020200202
410200330130220
5123342320224
611303251332
71606552043
oct440743450
9167466622
1075745064
113983542a
1221449b48
1312900785
14a0b9c5a
1569b2eae
hex483c728

75745064 has 32 divisors (see below), whose sum is σ = 150805800. Its totient is φ = 35543040.

The previous prime is 75745037. The next prime is 75745079. The reversal of 75745064 is 46054757.

It can be written as a sum of positive squares in 4 ways, for example, as 65772100 + 9972964 = 8110^2 + 3158^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 70322 + ... + 71390.

Almost surely, 275745064 is an apocalyptic number.

It is an amenable number.

75745064 is a deficient number, since it is larger than the sum of its proper divisors (75060736).

75745064 is a wasteful number, since it uses less digits than its factorization.

75745064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 75745064 is about 8703.1640223542. The cubic root of 75745064 is about 423.1082033308.

The spelling of 75745064 in words is "seventy-five million, seven hundred forty-five thousand, sixty-four".

Divisors: 1 2 4 8 17 34 68 136 521 1042 1069 2084 2138 4168 4276 8552 8857 17714 18173 35428 36346 70856 72692 145384 556949 1113898 2227796 4455592 9468133 18936266 37872532 75745064