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12010805307 = 341512573821
BaseRepresentation
bin10110010111110011…
…00101100000111011
31011000001110010110000
423023321211200323
5144044231232212
65303453124043
7603432106044
oct131371454073
934001403400
1012010805307
115103871886
1223b2489623
131195478ab7
1481d2318cb
154a46a71dc
hex2cbe6583b

12010805307 has 40 divisors (see below), whose sum is σ = 18135909792. Its totient is φ = 7921152000.

The previous prime is 12010805299. The next prime is 12010805377. The reversal of 12010805307 is 70350801021.

12010805307 is a `hidden beast` number, since 1 + 20 + 108 + 0 + 530 + 7 = 666.

It is not a de Polignac number, because 12010805307 - 23 = 12010805299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12010805377) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 3141457 + ... + 3145277.

Almost surely, 212010805307 is an apocalyptic number.

12010805307 is a deficient number, since it is larger than the sum of its proper divisors (6125104485).

12010805307 is a wasteful number, since it uses less digits than its factorization.

12010805307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4241 (or 4232 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The spelling of 12010805307 in words is "twelve billion, ten million, eight hundred five thousand, three hundred seven".

Divisors: 1 3 9 27 81 151 257 453 771 1359 2313 3821 4077 6939 11463 12231 20817 34389 38807 103167 116421 309501 349263 576971 981997 1047789 1730913 2945991 3143367 5192739 8837973 15578217 26513919 46734651 79541757 148281547 444844641 1334533923 4003601769 12010805307