Base | Representation |
---|---|
bin | 10010101110000111… |
… | …111111100101011011 |
3 | 1220212212221202212000 |
4 | 102232013333211123 |
5 | 312131401401334 |
6 | 13122342252043 |
7 | 1311061245162 |
oct | 225607774533 |
9 | 56785852760 |
10 | 20101200219 |
11 | 8585670271 |
12 | 3a8ba27023 |
13 | 1b8464b819 |
14 | d8990a3d9 |
15 | 7c9aab299 |
hex | 4ae1ff95b |
20101200219 has 16 divisors (see below), whose sum is σ = 29781808800. Its totient is φ = 13399786368.
The previous prime is 20101200179. The next prime is 20101200241. The reversal of 20101200219 is 91200210102.
It is not a de Polignac number, because 20101200219 - 211 = 20101198171 is a prime.
It is a super-2 number, since 2×201012002192 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (20101200269) 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, 554647 + ... + 589775.
It is an arithmetic number, because the mean of its divisors is an integer number (1861363050).
Almost surely, 220101200219 is an apocalyptic number.
20101200219 is a deficient number, since it is larger than the sum of its proper divisors (9680608581).
20101200219 is a wasteful number, since it uses less digits than its factorization.
20101200219 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 56331 (or 56325 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 18.
The spelling of 20101200219 in words is "twenty billion, one hundred one million, two hundred thousand, two hundred nineteen".
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