Base | Representation |
---|---|
bin | 10011000001101111… |
… | …110101100011101101 |
3 | 1221201211102110112102 |
4 | 103001233311203231 |
5 | 313320141141023 |
6 | 13215142344445 |
7 | 1322166431264 |
oct | 230157654355 |
9 | 57654373472 |
10 | 20430412013 |
11 | 8734486a30 |
12 | 3b6212b125 |
13 | 1c079068bb |
14 | dbb5255db |
15 | 7e893a628 |
hex | 4c1bf58ed |
20430412013 has 16 divisors (see below), whose sum is σ = 22537536000. Its totient is φ = 18366076080.
The previous prime is 20430411983. The next prime is 20430412049. The reversal of 20430412013 is 31021403402.
It is not a de Polignac number, because 20430412013 - 216 = 20430346477 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20430412073) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328178 + ... + 385436.
It is an arithmetic number, because the mean of its divisors is an integer number (1408596000).
Almost surely, 220430412013 is an apocalyptic number.
It is an amenable number.
20430412013 is a deficient number, since it is larger than the sum of its proper divisors (2107123987).
20430412013 is a wasteful number, since it uses less digits than its factorization.
20430412013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 57632.
The product of its (nonzero) digits is 576, while the sum is 20.
Adding to 20430412013 its reverse (31021403402), we get a palindrome (51451815415).
The spelling of 20430412013 in words is "twenty billion, four hundred thirty million, four hundred twelve thousand, thirteen".
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