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75780652 = 2289212867
BaseRepresentation
bin1001000010001…
…01001000101100
312021121001111211
410201011020230
5123344440102
611304124204
71610060563
oct441051054
9167531454
1075780652
113985a142
1221466664
1312913a2c
14a0c8bda
1569bd7d7
hex484522c

75780652 has 12 divisors (see below), whose sum is σ = 134106840. Its totient is φ = 37464416.

The previous prime is 75780637. The next prime is 75780659. The reversal of 75780652 is 25608757.

It is not an unprimeable number, because it can be changed into a prime (75780659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106078 + ... + 106789.

It is an arithmetic number, because the mean of its divisors is an integer number (11175570).

Almost surely, 275780652 is an apocalyptic number.

It is an amenable number.

75780652 is a deficient number, since it is larger than the sum of its proper divisors (58326188).

75780652 is a wasteful number, since it uses less digits than its factorization.

75780652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212960 (or 212958 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 75780652 is about 8705.2083260540. The cubic root of 75780652 is about 423.1744572284.

The spelling of 75780652 in words is "seventy-five million, seven hundred eighty thousand, six hundred fifty-two".

Divisors: 1 2 4 89 178 356 212867 425734 851468 18945163 37890326 75780652