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12784381060 = 22511167347969
BaseRepresentation
bin10111110100000001…
…00010110010000100
31012222222001211212211
423322000202302010
5202140300143220
65512325353204
7631544305663
oct137200426204
935888054784
1012784381060
1154704a4790
122589568804
131289809429
14893c7cdda
154ec55eb5a
hex2fa022c84

12784381060 has 48 divisors (see below), whose sum is σ = 29463315840. Its totient is φ = 4621015040.

The previous prime is 12784381033. The next prime is 12784381063. The reversal of 12784381060 is 6018348721.

It is not an unprimeable number, because it can be changed into a prime (12784381063) 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 15 ways as a sum of consecutive naturals, for example, 137245 + ... + 210724.

It is an arithmetic number, because the mean of its divisors is an integer number (613819080).

Almost surely, 212784381060 is an apocalyptic number.

12784381060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12784381060 is an abundant number, since it is smaller than the sum of its proper divisors (16678934780).

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

12784381060 is a wasteful number, since it uses less digits than its factorization.

12784381060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348156 (or 348154 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 12784381060 in words is "twelve billion, seven hundred eighty-four million, three hundred eighty-one thousand, sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 167 220 334 668 835 1670 1837 3340 3674 7348 9185 18370 36740 347969 695938 1391876 1739845 3479690 3827659 6959380 7655318 15310636 19138295 38276590 58110823 76553180 116221646 232443292 290554115 581108230 639219053 1162216460 1278438106 2556876212 3196095265 6392190530 12784381060