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12758432072 = 2333135913421
BaseRepresentation
bin10111110000111011…
…00011100101001000
31012221011020111120012
423320131203211020
5202112124311242
65510001251052
7631110611651
oct137035434510
935834214505
1012758432072
115457890941
122580933a88
1312843222b9
14890646528
154ea136282
hex2f8763948

12758432072 has 32 divisors (see below), whose sum is σ = 24062961600. Its totient is φ = 6341755200.

The previous prime is 12758432069. The next prime is 12758432077. The reversal of 12758432072 is 27023485721.

12758432072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12758432077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943922 + ... + 957342.

It is an arithmetic number, because the mean of its divisors is an integer number (751967550).

Almost surely, 212758432072 is an apocalyptic number.

It is an amenable number.

12758432072 is a deficient number, since it is larger than the sum of its proper divisors (11304529528).

12758432072 is a wasteful number, since it uses less digits than its factorization.

12758432072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14117 (or 14113 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 12758432072 in words is "twelve billion, seven hundred fifty-eight million, four hundred thirty-two thousand, seventy-two".

Divisors: 1 2 4 8 331 359 662 718 1324 1436 2648 2872 13421 26842 53684 107368 118829 237658 475316 950632 4442351 4818139 8884702 9636278 17769404 19272556 35538808 38545112 1594804009 3189608018 6379216036 12758432072