Base | Representation |
---|---|
bin | 10010101000101101… |
… | …111000111001011111 |
3 | 1220122120020020202211 |
4 | 102220231320321133 |
5 | 311440140033012 |
6 | 13105341501251 |
7 | 1305610124422 |
oct | 225055707137 |
9 | 56576206684 |
10 | 20010471007 |
11 | 853943104a |
12 | 3a65571827 |
13 | 1b6b9029b7 |
14 | d7b84d9b9 |
15 | 7c1b386a7 |
hex | 4a8b78e5f |
20010471007 has 2 divisors, whose sum is σ = 20010471008. Its totient is φ = 20010471006.
The previous prime is 20010471001. The next prime is 20010471073. The reversal of 20010471007 is 70017401002.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-20010471007 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20010471001) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005235503 + 10005235504.
It is an arithmetic number, because the mean of its divisors is an integer number (10005235504).
Almost surely, 220010471007 is an apocalyptic number.
20010471007 is a deficient number, since it is larger than the sum of its proper divisors (1).
20010471007 is an equidigital number, since it uses as much as digits as its factorization.
20010471007 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 392, while the sum is 22.
Adding to 20010471007 its reverse (70017401002), we get a palindrome (90027872009).
The spelling of 20010471007 in words is "twenty billion, ten million, four hundred seventy-one thousand, seven".
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