Base | Representation |
---|---|
bin | 1100010101110011110… |
… | …1110111111011101100 |
3 | 202021020120002110211110 |
4 | 3011130331313323230 |
5 | 11433200324340020 |
6 | 241221504552020 |
7 | 21213611540103 |
oct | 3053475677354 |
9 | 667216073743 |
10 | 212013121260 |
11 | 81a06974a96 |
12 | 3510a922610 |
13 | 16cba0c9155 |
14 | a39375703a |
15 | 57ace378e0 |
hex | 315cf77eec |
212013121260 has 96 divisors (see below), whose sum is σ = 595207388160. Its totient is φ = 56387441152.
The previous prime is 212013121253. The next prime is 212013121261. The reversal of 212013121260 is 62121310212.
It is not an unprimeable number, because it can be changed into a prime (212013121261) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54041659 + ... + 54045581.
It is an arithmetic number, because the mean of its divisors is an integer number (6200076960).
Almost surely, 2212013121260 is an apocalyptic number.
212013121260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
212013121260 is an abundant number, since it is smaller than the sum of its proper divisors (383194266900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212013121260 is a wasteful number, since it uses less digits than its factorization.
212013121260 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6087 (or 6085 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 21.
Adding to 212013121260 its reverse (62121310212), we get a palindrome (274134431472).
The spelling of 212013121260 in words is "two hundred twelve billion, thirteen million, one hundred twenty-one thousand, two hundred sixty".
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