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75378804 = 2236281567
BaseRepresentation
bin1000111111000…
…11000001110100
312020211122021120
410133203001310
5123244110204
611251343540
71603465164
oct437430164
9166748246
1075378804
1139605236
12212b1bb0
1312802b57
14a0225a4
15693e6d9
hex47e3074

75378804 has 12 divisors (see below), whose sum is σ = 175883904. Its totient is φ = 25126264.

The previous prime is 75378803. The next prime is 75378827. The reversal of 75378804 is 40887357.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75378803) 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, 3140772 + ... + 3140795.

It is an arithmetic number, because the mean of its divisors is an integer number (14656992).

Almost surely, 275378804 is an apocalyptic number.

It is an amenable number.

75378804 is an abundant number, since it is smaller than the sum of its proper divisors (100505100).

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

75378804 is a wasteful number, since it uses less digits than its factorization.

75378804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6281574 (or 6281572 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 75378804 is about 8682.0967513614. The cubic root of 75378804 is about 422.4251310447.

The spelling of 75378804 in words is "seventy-five million, three hundred seventy-eight thousand, eight hundred four".

Divisors: 1 2 3 4 6 12 6281567 12563134 18844701 25126268 37689402 75378804