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75680412 = 22330720543
BaseRepresentation
bin1001000001011…
…00101010011100
312021101222000020
410200230222130
5123333233122
611302032140
71606162413
oct440545234
9167358006
1075680412
11397a08a5
1221418650
13128aa212
14a0a047a
15699dc5c
hex482ca9c

75680412 has 24 divisors (see below), whose sum is σ = 177171456. Its totient is φ = 25143408.

The previous prime is 75680399. The next prime is 75680461. The reversal of 75680412 is 21408657.

It is a congruent number.

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, 6588 + ... + 13955.

It is an arithmetic number, because the mean of its divisors is an integer number (7382144).

Almost surely, 275680412 is an apocalyptic number.

It is an amenable number.

75680412 is an abundant number, since it is smaller than the sum of its proper divisors (101491044).

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

75680412 is a wasteful number, since it uses less digits than its factorization.

75680412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20857 (or 20855 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 75680412 is about 8699.4489480656. The cubic root of 75680412 is about 422.9877880999.

The spelling of 75680412 in words is "seventy-five million, six hundred eighty thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 307 614 921 1228 1842 3684 20543 41086 61629 82172 123258 246516 6306701 12613402 18920103 25226804 37840206 75680412