Base | Representation |
---|---|
bin | 11001001010101… |
… | …11010000110010 |
3 | 112201021001211210 |
4 | 30211113100302 |
5 | 413021334302 |
6 | 32541020550 |
7 | 5142333465 |
oct | 1445272062 |
9 | 481231753 |
10 | 211121202 |
11 | a9199536 |
12 | 5a854756 |
13 | 3497c2b6 |
14 | 200792dc |
15 | 1380466c |
hex | c957432 |
211121202 has 8 divisors (see below), whose sum is σ = 422242416. Its totient is φ = 70373732.
The previous prime is 211121173. The next prime is 211121203. The reversal of 211121202 is 202121112.
It is a sphenic number, since it is the product of 3 distinct primes.
211121202 is an admirable number.
It is not an unprimeable number, because it can be changed into a prime (211121203) 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, 17593428 + ... + 17593439.
It is an arithmetic number, because the mean of its divisors is an integer number (52780302).
Almost surely, 2211121202 is an apocalyptic number.
211121202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211121202 is a wasteful number, since it uses less digits than its factorization.
211121202 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35186872.
The product of its (nonzero) digits is 16, while the sum is 12.
The square root of 211121202 is about 14530.0103922881. The cubic root of 211121202 is about 595.4481495320.
Adding to 211121202 its reverse (202121112), we get a palindrome (413242314).
The spelling of 211121202 in words is "two hundred eleven million, one hundred twenty-one thousand, two hundred two".
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