Base | Representation |
---|---|
bin | 11000000011000011… |
… | …01100101101011100 |
3 | 1020022202102000100201 |
4 | 30001201230231130 |
5 | 202420042403423 |
6 | 5533033033244 |
7 | 634635356362 |
oct | 140141545534 |
9 | 36282360321 |
10 | 12910512988 |
11 | 552571454a |
12 | 2603855824 |
13 | 12a999c3c9 |
14 | 8a6913632 |
15 | 5086772ad |
hex | 30186cb5c |
12910512988 has 6 divisors (see below), whose sum is σ = 22593397736. Its totient is φ = 6455256492.
The previous prime is 12910512949. The next prime is 12910513013. The reversal of 12910512988 is 88921501921.
It is a happy number.
It is a super-2 number, since 2×129105129882 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1613814120 + ... + 1613814127.
Almost surely, 212910512988 is an apocalyptic number.
It is an amenable number.
12910512988 is a deficient number, since it is larger than the sum of its proper divisors (9682884748).
12910512988 is a wasteful number, since it uses less digits than its factorization.
12910512988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3227628251 (or 3227628249 counting only the distinct ones).
The product of its (nonzero) digits is 103680, while the sum is 46.
The spelling of 12910512988 in words is "twelve billion, nine hundred ten million, five hundred twelve thousand, nine hundred eighty-eight".
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