Base | Representation |
---|---|
bin | 101101101101011001101010… |
… | …110011101110011111000101 |
3 | 222100210110210220102002200102 |
4 | 231231121222303232133011 |
5 | 202322202044441414341 |
6 | 1551320501251453445 |
7 | 60226041065635043 |
oct | 5555315263563705 |
9 | 870713726362612 |
10 | 201032031201221 |
11 | 5906722979a870 |
12 | 1a6694305b7285 |
13 | 882331569c80c |
14 | 3790006173393 |
15 | 1839487906c9b |
hex | b6d66acee7c5 |
201032031201221 has 16 divisors (see below), whose sum is σ = 219578923880640. Its totient is φ = 182530450417920.
The previous prime is 201032031201203. The next prime is 201032031201263. The reversal of 201032031201221 is 122102130230102.
It is not a de Polignac number, because 201032031201221 - 226 = 201031964092357 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 201032031201193 and 201032031201202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (201032031201271) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36502781 + ... + 41647533.
It is an arithmetic number, because the mean of its divisors is an integer number (13723682742540).
Almost surely, 2201032031201221 is an apocalyptic number.
It is an amenable number.
201032031201221 is a deficient number, since it is larger than the sum of its proper divisors (18546892679419).
201032031201221 is a wasteful number, since it uses less digits than its factorization.
201032031201221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5149156.
The product of its (nonzero) digits is 288, while the sum is 20.
Adding to 201032031201221 its reverse (122102130230102), we get a palindrome (323134161431323).
The spelling of 201032031201221 in words is "two hundred one trillion, thirty-two billion, thirty-one million, two hundred one thousand, two hundred twenty-one".
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