Base | Representation |
---|---|
bin | 11001010010011… |
… | …01100110100000 |
3 | 112210011022221101 |
4 | 30221031212200 |
5 | 413301131313 |
6 | 33014404144 |
7 | 5154035263 |
oct | 1451154640 |
9 | 483138841 |
10 | 212130208 |
11 | a9818624 |
12 | 5b060654 |
13 | 34c43644 |
14 | 2025ccda |
15 | 139535dd |
hex | ca4d9a0 |
212130208 has 24 divisors (see below), whose sum is σ = 418074048. Its totient is φ = 105952704.
The previous prime is 212130161. The next prime is 212130229. The reversal of 212130208 is 802031212.
It is a super-2 number, since 2×2121302082 = 89998450292246528, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32985 + ... + 38887.
It is an arithmetic number, because the mean of its divisors is an integer number (17419752).
Almost surely, 2212130208 is an apocalyptic number.
It is an amenable number.
212130208 is a deficient number, since it is larger than the sum of its proper divisors (205943840).
212130208 is a wasteful number, since it uses less digits than its factorization.
212130208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7036 (or 7028 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 19.
The square root of 212130208 is about 14564.6904532846. The cubic root of 212130208 is about 596.3952455394.
The spelling of 212130208 in words is "two hundred twelve million, one hundred thirty thousand, two hundred eight".
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