Base | Representation |
---|---|
bin | 10010101000001001… |
… | …110011001000100011 |
3 | 1220121220102120222222 |
4 | 102220021303020203 |
5 | 311430224311321 |
6 | 13104403021255 |
7 | 1305433532060 |
oct | 225011631043 |
9 | 56556376888 |
10 | 20001010211 |
11 | 853405a006 |
12 | 3a6236a82b |
13 | 1b6996c6b0 |
14 | d7a4a9c67 |
15 | 7c0dba3ab |
hex | 4a8273223 |
20001010211 has 16 divisors (see below), whose sum is σ = 24740352000. Its totient is φ = 15745438368.
The previous prime is 20001010181. The next prime is 20001010217. The reversal of 20001010211 is 11201010002.
It is a cyclic number.
It is not a de Polignac number, because 20001010211 - 26 = 20001010147 is a prime.
It is not an unprimeable number, because it can be changed into a prime (20001010217) 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, 534131 + ... + 570348.
It is an arithmetic number, because the mean of its divisors is an integer number (1546272000).
Almost surely, 220001010211 is an apocalyptic number.
20001010211 is a deficient number, since it is larger than the sum of its proper divisors (4739341789).
20001010211 is a wasteful number, since it uses less digits than its factorization.
20001010211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1104698.
The product of its (nonzero) digits is 4, while the sum is 8.
Adding to 20001010211 its reverse (11201010002), we get a palindrome (31202020213).
The spelling of 20001010211 in words is "twenty billion, one million, ten thousand, two hundred eleven".
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