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12992387982 = 2372313449677
BaseRepresentation
bin11000001100110100…
…00001101110001110
31020112110110200201220
430012122001232032
5203102022403412
65545115544210
7636651322110
oct140632015616
936473420656
1012992387982
115567956432
12262715b066
1312c0938052
148b37473b0
1551094b68c
hex306681b8e

12992387982 has 32 divisors (see below), whose sum is σ = 30988058112. Its totient is φ = 3550714464.

The previous prime is 12992387927. The next prime is 12992388011. The reversal of 12992387982 is 28978329921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6723873 + ... + 6725804.

It is an arithmetic number, because the mean of its divisors is an integer number (968376816).

Almost surely, 212992387982 is an apocalyptic number.

12992387982 is an abundant number, since it is smaller than the sum of its proper divisors (17995670130).

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

12992387982 is a wasteful number, since it uses less digits than its factorization.

12992387982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13449712.

The product of its digits is 7838208, while the sum is 60.

The spelling of 12992387982 in words is "twelve billion, nine hundred ninety-two million, three hundred eighty-seven thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 7 14 21 23 42 46 69 138 161 322 483 966 13449677 26899354 40349031 80698062 94147739 188295478 282443217 309342571 564886434 618685142 928027713 1856055426 2165397997 4330795994 6496193991 12992387982