Base | Representation |
---|---|
bin | 111000011111011010… |
… | …0111000000111100110 |
3 | 102121010112001200101010 |
4 | 1300332310320013212 |
5 | 3441422130224110 |
6 | 131421441243050 |
7 | 11523152421405 |
oct | 1607664700746 |
9 | 377115050333 |
10 | 121313133030 |
11 | 474a3112431 |
12 | 1b617633486 |
13 | b59426cc6b |
14 | 5c2b8c563c |
15 | 32503dc020 |
hex | 1c3ed381e6 |
121313133030 has 48 divisors (see below), whose sum is σ = 297478197360. Its totient is φ = 31661850048.
The previous prime is 121313133017. The next prime is 121313133031. The reversal of 121313133030 is 30331313121.
It is a junction number, because it is equal to n+sod(n) for n = 121313132988 and 121313133006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121313133031) 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, 849025 + ... + 981564.
It is an arithmetic number, because the mean of its divisors is an integer number (6197462445).
Almost surely, 2121313133030 is an apocalyptic number.
121313133030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
121313133030 is an abundant number, since it is smaller than the sum of its proper divisors (176165064330).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121313133030 is a wasteful number, since it uses less digits than its factorization.
121313133030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1830693 (or 1830646 counting only the distinct ones).
The product of its (nonzero) digits is 486, while the sum is 21.
Adding to 121313133030 its reverse (30331313121), we get a palindrome (151644446151).
The spelling of 121313133030 in words is "one hundred twenty-one billion, three hundred thirteen million, one hundred thirty-three thousand, thirty".
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