Base | Representation |
---|---|
bin | 1011101100110010010… |
… | …1111110000011111011 |
3 | 201012211002211211000100 |
4 | 2323030211332003323 |
5 | 11243122224014321 |
6 | 232201045010443 |
7 | 20343664214613 |
oct | 2731445760373 |
9 | 635732754010 |
10 | 201001001211 |
11 | 7827590922a |
12 | 32b569b3a23 |
13 | 15c53819c9a |
14 | 9a2b00da43 |
15 | 53662a2326 |
hex | 2ecc97e0fb |
201001001211 has 6 divisors (see below), whose sum is σ = 290334779540. Its totient is φ = 134000667468.
The previous prime is 201001001183. The next prime is 201001001237. The reversal of 201001001211 is 112100100102.
It is a happy number.
It is not a de Polignac number, because 201001001211 - 233 = 192411066619 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 22333444579 = 201001001211 / (2 + 0 + 1 + 0 + 0 + 1 + 0 + 0 + 1 + 2 + 1 + 1).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 201001001193 and 201001001202.
It is not an unprimeable number, because it can be changed into a prime (201001001281) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11166722281 + ... + 11166722298.
Almost surely, 2201001001211 is an apocalyptic number.
201001001211 is a deficient number, since it is larger than the sum of its proper divisors (89333778329).
201001001211 is a wasteful number, since it uses less digits than its factorization.
201001001211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22333444585 (or 22333444582 counting only the distinct ones).
The product of its (nonzero) digits is 4, while the sum is 9.
Adding to 201001001211 its reverse (112100100102), we get a palindrome (313101101313).
The spelling of 201001001211 in words is "two hundred one billion, one million, one thousand, two hundred eleven".
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