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30315742886 = 21113228129017
BaseRepresentation
bin11100001110111101…
…011000011010100110
32220020202102022012002
4130032331120122212
5444041312233021
621532111325302
72122152364022
oct341675303246
986222368162
1030315742886
11119474a0370
125a60820832
132b21915700
141678359382
15bc66e750b
hex70ef586a6

30315742886 has 48 divisors (see below), whose sum is σ = 53910104688. Its totient is φ = 12674188800.

The previous prime is 30315742861. The next prime is 30315742907. The reversal of 30315742886 is 68824751303.

It is a self number, because there is not a number n which added to its sum of digits gives 30315742886.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1030250 + ... + 1059266.

It is an arithmetic number, because the mean of its divisors is an integer number (1123127181).

Almost surely, 230315742886 is an apocalyptic number.

30315742886 is a deficient number, since it is larger than the sum of its proper divisors (23594361802).

30315742886 is a wasteful number, since it uses less digits than its factorization.

30315742886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29337 (or 29324 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 30315742886 in words is "thirty billion, three hundred fifteen million, seven hundred forty-two thousand, eight hundred eighty-six".

Divisors: 1 2 11 13 22 26 143 169 281 286 338 562 1859 3091 3653 3718 6182 7306 29017 40183 47489 58034 80366 94978 319187 377221 522379 638374 754442 1044758 4149431 4903873 8153777 8298862 9807746 16307554 53942603 89691547 105999101 107885206 179383094 211998202 1165990111 1377988313 2331980222 2755976626 15157871443 30315742886