Base | Representation |
---|---|
bin | 10010101110111101… |
… | …000110111101001001 |
3 | 1220220212011011202010 |
4 | 102232331012331021 |
5 | 312143432432131 |
6 | 13124000530133 |
7 | 1311320506335 |
oct | 225675067511 |
9 | 56825134663 |
10 | 20115124041 |
11 | 8592510461 |
12 | 3a94620949 |
13 | 1b874b537c |
14 | d8b6d27c5 |
15 | 7cae0bb46 |
hex | 4aef46f49 |
20115124041 has 8 divisors (see below), whose sum is σ = 28231753120. Its totient is φ = 12704288832.
The previous prime is 20115124031. The next prime is 20115124063. The reversal of 20115124041 is 14042151102.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20115124041 - 27 = 20115123913 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20115123999 and 20115124017.
It is not an unprimeable number, because it can be changed into a prime (20115124031) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176448400 + ... + 176448513.
It is an arithmetic number, because the mean of its divisors is an integer number (3528969140).
Almost surely, 220115124041 is an apocalyptic number.
It is an amenable number.
20115124041 is a deficient number, since it is larger than the sum of its proper divisors (8116629079).
20115124041 is a wasteful number, since it uses less digits than its factorization.
20115124041 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 352896935.
The product of its (nonzero) digits is 320, while the sum is 21.
Adding to 20115124041 its reverse (14042151102), we get a palindrome (34157275143).
The spelling of 20115124041 in words is "twenty billion, one hundred fifteen million, one hundred twenty-four thousand, forty-one".
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