Base | Representation |
---|---|
bin | 11001010101010… |
… | …10111001100000 |
3 | 112210212202010212 |
4 | 30222222321200 |
5 | 413400343402 |
6 | 33030513252 |
7 | 5160216353 |
oct | 1452527140 |
9 | 483782125 |
10 | 212512352 |
11 | a9a59748 |
12 | 5b205828 |
13 | 35048570 |
14 | 2031c29a |
15 | 139cb952 |
hex | caaae60 |
212512352 has 24 divisors (see below), whose sum is σ = 450567936. Its totient is φ = 98082432.
The previous prime is 212512337. The next prime is 212512357. The reversal of 212512352 is 253215212.
It is a super-2 number, since 2×2125123522 = 90322999505143808, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212512357) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255008 + ... + 255839.
It is an arithmetic number, because the mean of its divisors is an integer number (18773664).
Almost surely, 2212512352 is an apocalyptic number.
It is an amenable number.
212512352 is an abundant number, since it is smaller than the sum of its proper divisors (238055584).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212512352 is a wasteful number, since it uses less digits than its factorization.
212512352 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 510870 (or 510862 counting only the distinct ones).
The product of its digits is 1200, while the sum is 23.
The square root of 212512352 is about 14577.8034010615. The cubic root of 212512352 is about 596.7531580176.
Adding to 212512352 its reverse (253215212), we get a palindrome (465727564).
The spelling of 212512352 in words is "two hundred twelve million, five hundred twelve thousand, three hundred fifty-two".
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