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30686968359126 = 23210340559408091
BaseRepresentation
bin1101111101000110111011…
…10110010010100011010110
311000122122102120212012122100
412332203131312102203112
513010233402344443001
6145133222035142530
76315026453163522
oct676433566224326
9130578376765570
1030686968359126
1198612a76a4012
12353740b744a46
1314179cbaa9691
14781385a4ad82
15383389c7e586
hex1be8ddd928d6

30686968359126 has 48 divisors (see below), whose sum is σ = 67135769925120. Its totient is φ = 10129404302640.

The previous prime is 30686968359119. The next prime is 30686968359143. The reversal of 30686968359126 is 62195386968603.

30686968359126 is a `hidden beast` number, since 3 + 0 + 6 + 8 + 6 + 9 + 6 + 8 + 3 + 591 + 26 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74992341 + ... + 75400431.

It is an arithmetic number, because the mean of its divisors is an integer number (1398661873440).

Almost surely, 230686968359126 is an apocalyptic number.

30686968359126 is an abundant number, since it is smaller than the sum of its proper divisors (36448801565994).

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

30686968359126 is a wasteful number, since it uses less digits than its factorization.

30686968359126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448761 (or 448758 counting only the distinct ones).

The product of its (nonzero) digits is 604661760, while the sum is 72.

The spelling of 30686968359126 in words is "thirty trillion, six hundred eighty-six billion, nine hundred sixty-eight million, three hundred fifty-nine thousand, one hundred twenty-six".

Divisors: 1 2 3 6 9 18 103 206 309 618 927 1854 40559 81118 121677 243354 365031 408091 730062 816182 1224273 2448546 3672819 4177577 7345638 8355154 12532731 25065462 37598193 42033373 75196386 84066746 126100119 252200238 378300357 756600714 16551762869 33103525738 49655288607 99310577214 148965865821 297931731642 1704831575507 3409663151014 5114494726521 10228989453042 15343484179563 30686968359126