Base | Representation |
---|---|
bin | 10010101000001010… |
… | …100011111101011111 |
3 | 1220121220210202100020 |
4 | 102220022203331133 |
5 | 311430302211312 |
6 | 13104411203223 |
7 | 1305435324126 |
oct | 225012437537 |
9 | 56556722306 |
10 | 20001210207 |
11 | 85341862a0 |
12 | 3a62446513 |
13 | 1b69a0c734 |
14 | d7a51cabd |
15 | 7c0e0978c |
hex | 4a82a3f5f |
20001210207 has 16 divisors (see below), whose sum is σ = 29108341632. Its totient is φ = 12115415520.
The previous prime is 20001210191. The next prime is 20001210239. The reversal of 20001210207 is 70201210002.
It is not a de Polignac number, because 20001210207 - 24 = 20001210191 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20001210247) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100708 + ... + 223929.
It is an arithmetic number, because the mean of its divisors is an integer number (1819271352).
Almost surely, 220001210207 is an apocalyptic number.
20001210207 is a deficient number, since it is larger than the sum of its proper divisors (9107131425).
20001210207 is a wasteful number, since it uses less digits than its factorization.
20001210207 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 326518.
The product of its (nonzero) digits is 56, while the sum is 15.
Adding to 20001210207 its reverse (70201210002), we get a palindrome (90202420209).
The spelling of 20001210207 in words is "twenty billion, one million, two hundred ten thousand, two hundred seven".
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