Base | Representation |
---|---|
bin | 10011001101101001… |
… | …011001010100101101 |
3 | 1222020202002010111101 |
4 | 103031221121110231 |
5 | 314222243100333 |
6 | 13251033323101 |
7 | 1330142350432 |
oct | 231551312455 |
9 | 58222063441 |
10 | 20630050093 |
11 | 8827141a84 |
12 | 3bb8b66491 |
13 | 1c3a095243 |
14 | dd9c51b89 |
15 | 80b22267d |
hex | 4cda5952d |
20630050093 has 2 divisors, whose sum is σ = 20630050094. Its totient is φ = 20630050092.
The previous prime is 20630050087. The next prime is 20630050127. The reversal of 20630050093 is 39005003602.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 11921800969 + 8708249124 = 109187^2 + 93318^2 .
It is a cyclic number.
It is not a de Polignac number, because 20630050093 - 25 = 20630050061 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20630050393) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10315025046 + 10315025047.
It is an arithmetic number, because the mean of its divisors is an integer number (10315025047).
Almost surely, 220630050093 is an apocalyptic number.
It is an amenable number.
20630050093 is a deficient number, since it is larger than the sum of its proper divisors (1).
20630050093 is an equidigital number, since it uses as much as digits as its factorization.
20630050093 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 4860, while the sum is 28.
Adding to 20630050093 its reverse (39005003602), we get a palindrome (59635053695).
The spelling of 20630050093 in words is "twenty billion, six hundred thirty million, fifty thousand, ninety-three".
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