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75286072 = 239410759
BaseRepresentation
bin1000111110011…
…00011000111000
312020122221002001
410133030120320
5123233123242
611245350344
71602630631
oct437143070
9166587061
1075286072
11395515a4
12212683b4
131279c894
149dda888
156921eb7
hex47cc638

75286072 has 8 divisors (see below), whose sum is σ = 141161400. Its totient is φ = 37643032.

The previous prime is 75286051. The next prime is 75286109. The reversal of 75286072 is 27068257.

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

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4705372 + ... + 4705387.

It is an arithmetic number, because the mean of its divisors is an integer number (17645175).

Almost surely, 275286072 is an apocalyptic number.

It is an amenable number.

75286072 is a deficient number, since it is larger than the sum of its proper divisors (65875328).

75286072 is a wasteful number, since it uses less digits than its factorization.

75286072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9410765 (or 9410761 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 75286072 is about 8676.7546928561. The cubic root of 75286072 is about 422.2518356371.

The spelling of 75286072 in words is "seventy-five million, two hundred eighty-six thousand, seventy-two".

Divisors: 1 2 4 8 9410759 18821518 37643036 75286072