Base | Representation |
---|---|
bin | 10010111010000111… |
… | …101011100111001101 |
3 | 1221101220122001210121 |
4 | 102322013223213031 |
5 | 313034411220010 |
6 | 13154331504541 |
7 | 1316053635523 |
oct | 227207534715 |
9 | 57356561717 |
10 | 20302445005 |
11 | 8679223477 |
12 | 3b272b8151 |
13 | 1bb725058b |
14 | da8534313 |
15 | 7dc5ae3da |
hex | 4ba1eb9cd |
20302445005 has 16 divisors (see below), whose sum is σ = 25222155264. Its totient is φ = 15678610560.
The previous prime is 20302444999. The next prime is 20302445087. The reversal of 20302445005 is 50054420302.
It is not a de Polignac number, because 20302445005 - 23 = 20302444997 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 574581 + ... + 608890.
It is an arithmetic number, because the mean of its divisors is an integer number (1576384704).
Almost surely, 220302445005 is an apocalyptic number.
It is an amenable number.
20302445005 is a deficient number, since it is larger than the sum of its proper divisors (4919710259).
20302445005 is a wasteful number, since it uses less digits than its factorization.
20302445005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1183596.
The product of its (nonzero) digits is 4800, while the sum is 25.
Adding to 20302445005 its reverse (50054420302), we get a palindrome (70356865307).
The spelling of 20302445005 in words is "twenty billion, three hundred two million, four hundred forty-five thousand, five".
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