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12303187998 = 232971995887
BaseRepresentation
bin10110111010101001…
…11100000000011110
31011202102121201002120
423131110330000132
5200144104003443
65352500003410
7613612241523
oct133524740036
934672551076
1012303187998
115243913272
122474390566
131210c0a6ca
14849dc114a
154c01ae083
hex2dd53c01e

12303187998 has 32 divisors (see below), whose sum is σ = 25813416960. Its totient is φ = 3903873120.

The previous prime is 12303187951. The next prime is 12303188033. The reversal of 12303187998 is 89978130321.

12303187998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12303187998.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485590 + ... + 510297.

It is an arithmetic number, because the mean of its divisors is an integer number (806669280).

Almost surely, 212303187998 is an apocalyptic number.

12303187998 is an abundant number, since it is smaller than the sum of its proper divisors (13510228962).

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

12303187998 is a wasteful number, since it uses less digits than its factorization.

12303187998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995992.

The product of its (nonzero) digits is 653184, while the sum is 51.

The spelling of 12303187998 in words is "twelve billion, three hundred three million, one hundred eighty-seven thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 29 58 71 87 142 174 213 426 2059 4118 6177 12354 995887 1991774 2987661 5975322 28880723 57761446 70707977 86642169 141415954 173284338 212123931 424247862 2050531333 4101062666 6151593999 12303187998