Base | Representation |
---|---|
bin | 11001010010011… |
… | …10000110000110 |
3 | 112210011102201021 |
4 | 30221032012012 |
5 | 413301212410 |
6 | 33014421354 |
7 | 5154044212 |
oct | 1451160606 |
9 | 483142637 |
10 | 212132230 |
11 | a981a0a2 |
12 | 5b06185a |
13 | 34c4453b |
14 | 2025d942 |
15 | 13953eda |
hex | ca4e186 |
212132230 has 32 divisors (see below), whose sum is σ = 389587968. Its totient is φ = 83148000.
The previous prime is 212132227. The next prime is 212132231. The reversal of 212132230 is 32231212.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212132231) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107755 + ... + 109705.
It is an arithmetic number, because the mean of its divisors is an integer number (12174624).
Almost surely, 2212132230 is an apocalyptic number.
212132230 is a deficient number, since it is larger than the sum of its proper divisors (177455738).
212132230 is a wasteful number, since it uses less digits than its factorization.
212132230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2172.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 212132230 is about 14564.7598675708. The cubic root of 212132230 is about 596.3971404564.
Adding to 212132230 its reverse (32231212), we get a palindrome (244363442).
The spelling of 212132230 in words is "two hundred twelve million, one hundred thirty-two thousand, two hundred thirty".
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