Base | Representation |
---|---|
bin | 10010101001010010… |
… | …101010101010001101 |
3 | 1220200020101001202010 |
4 | 102221102222222031 |
5 | 312000122041023 |
6 | 13110324251433 |
7 | 1306055100336 |
oct | 225122525215 |
9 | 56606331663 |
10 | 20020112013 |
11 | 8543916520 |
12 | 3a68840b79 |
13 | 1b708ca035 |
14 | d7cc3d28d |
15 | 7c28e0093 |
hex | 4a94aaa8d |
20020112013 has 16 divisors (see below), whose sum is σ = 29138227200. Its totient is φ = 12125874480.
The previous prime is 20020111921. The next prime is 20020112023. The reversal of 20020112013 is 31021102002.
It is not a de Polignac number, because 20020112013 - 213 = 20020103821 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 20020112013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20020112023) 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, 133933 + ... + 240786.
It is an arithmetic number, because the mean of its divisors is an integer number (1821139200).
Almost surely, 220020112013 is an apocalyptic number.
It is an amenable number.
20020112013 is a deficient number, since it is larger than the sum of its proper divisors (9118115187).
20020112013 is a wasteful number, since it uses less digits than its factorization.
20020112013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 376352.
The product of its (nonzero) digits is 24, while the sum is 12.
Adding to 20020112013 its reverse (31021102002), we get a palindrome (51041214015).
The spelling of 20020112013 in words is "twenty billion, twenty million, one hundred twelve thousand, thirteen".
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