Base | Representation |
---|---|
bin | 10010101001111100… |
… | …111110010000000011 |
3 | 1220201000020111202202 |
4 | 102221330332100003 |
5 | 312010441433212 |
6 | 13111402103415 |
7 | 1306251260504 |
oct | 225174762003 |
9 | 56630214682 |
10 | 20031202307 |
11 | 854a100856 |
12 | 3a704aab6b |
13 | 1b72cb0c3c |
14 | d804c8bab |
15 | 7c38810c2 |
hex | 4a9f3e403 |
20031202307 has 2 divisors, whose sum is σ = 20031202308. Its totient is φ = 20031202306.
The previous prime is 20031202283. The next prime is 20031202349. The reversal of 20031202307 is 70320213002.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 20031202307 - 212 = 20031198211 is a prime.
It is not a weakly prime, because it can be changed into another prime (20031202007) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10015601153 + 10015601154.
It is an arithmetic number, because the mean of its divisors is an integer number (10015601154).
Almost surely, 220031202307 is an apocalyptic number.
20031202307 is a deficient number, since it is larger than the sum of its proper divisors (1).
20031202307 is an equidigital number, since it uses as much as digits as its factorization.
20031202307 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 504, while the sum is 20.
Adding to 20031202307 its reverse (70320213002), we get a palindrome (90351415309).
The spelling of 20031202307 in words is "twenty billion, thirty-one million, two hundred two thousand, three hundred seven".
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