Base | Representation |
---|---|
bin | 10111100110001010… |
… | …10001011110100110 |
3 | 1012200212102020112022 |
4 | 23303011101132212 |
5 | 201421023233030 |
6 | 5453015023142 |
7 | 625633520345 |
oct | 136305213646 |
9 | 35625366468 |
10 | 12668180390 |
11 | 5410948478 |
12 | 255666aab2 |
13 | 126b712938 |
14 | 882671b5c |
15 | 4e2259de5 |
hex | 2f31517a6 |
12668180390 has 16 divisors (see below), whose sum is σ = 22969170432. Its totient is φ = 5030284224.
The previous prime is 12668180381. The next prime is 12668180431. The reversal of 12668180390 is 9308186621.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4622054 + ... + 4624793.
It is an arithmetic number, because the mean of its divisors is an integer number (1435573152).
Almost surely, 212668180390 is an apocalyptic number.
12668180390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12668180390 is a deficient number, since it is larger than the sum of its proper divisors (10300990042).
12668180390 is a wasteful number, since it uses less digits than its factorization.
12668180390 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9246991.
The product of its (nonzero) digits is 124416, while the sum is 44.
The spelling of 12668180390 in words is "twelve billion, six hundred sixty-eight million, one hundred eighty thousand, three hundred ninety".
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