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12030976287 = 3211877138569
BaseRepresentation
bin10110011010001101…
…00010000100011111
31011001110101220211100
423031012202010133
5144114412220122
65305453324143
7604065416421
oct131506420437
934043356740
1012030976287
115114199610
1223b9196653
1311996bbca5
14821ba2811
154a633daac
hex2cd1a211f

12030976287 has 24 divisors (see below), whose sum is σ = 18979655760. Its totient is φ = 7283134080.

The previous prime is 12030976267. The next prime is 12030976289. The reversal of 12030976287 is 78267903021.

12030976287 is a `hidden beast` number, since 12 + 0 + 3 + 0 + 9 + 7 + 628 + 7 = 666.

It is not a de Polignac number, because 12030976287 - 27 = 12030976159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030976289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17539 + ... + 156107.

It is an arithmetic number, because the mean of its divisors is an integer number (790818990).

Almost surely, 212030976287 is an apocalyptic number.

12030976287 is a deficient number, since it is larger than the sum of its proper divisors (6948679473).

12030976287 is a wasteful number, since it uses less digits than its factorization.

12030976287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139463 (or 139460 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 12030976287 in words is "twelve billion, thirty million, nine hundred seventy-six thousand, two hundred eighty-seven".

Divisors: 1 3 9 11 33 99 877 2631 7893 9647 28941 86823 138569 415707 1247121 1524259 4572777 13718331 121525013 364575039 1093725117 1336775143 4010325429 12030976287