Base | Representation |
---|---|
bin | 11001010010010… |
… | …11001010001010 |
3 | 112210010211012210 |
4 | 30221023022022 |
5 | 413300321302 |
6 | 33014245550 |
7 | 5153664150 |
oct | 1451131212 |
9 | 483124183 |
10 | 212120202 |
11 | a9811058 |
12 | 5b0568b6 |
13 | 34c3bc18 |
14 | 202593d0 |
15 | 1395066c |
hex | ca4b28a |
212120202 has 32 divisors (see below), whose sum is σ = 485741952. Its totient is φ = 60493824.
The previous prime is 212120201. The next prime is 212120221. The reversal of 212120202 is 202021212.
It is not an unprimeable number, because it can be changed into a prime (212120201) 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, 19858 + ... + 28610.
It is an arithmetic number, because the mean of its divisors is an integer number (15179436).
Almost surely, 2212120202 is an apocalyptic number.
212120202 is an abundant number, since it is smaller than the sum of its proper divisors (273621750).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212120202 is a wasteful number, since it uses less digits than its factorization.
212120202 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9342.
The product of its (nonzero) digits is 32, while the sum is 12.
The square root of 212120202 is about 14564.3469472544. The cubic root of 212120202 is about 596.3858682412.
Adding to 212120202 its reverse (202021212), we get a palindrome (414141414).
The spelling of 212120202 in words is "two hundred twelve million, one hundred twenty thousand, two hundred two".
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