Base | Representation |
---|---|
bin | 1011101001001011001… |
… | …0100011010100010101 |
3 | 201010022112000212200020 |
4 | 2322102302203110111 |
5 | 11234130443033023 |
6 | 231520523135353 |
7 | 20310650216241 |
oct | 2722262432425 |
9 | 633275025606 |
10 | 200031221013 |
11 | 77918455a98 |
12 | 32926074559 |
13 | 15b2a930b50 |
14 | 99782cb421 |
15 | 530b08ede3 |
hex | 2e92ca3515 |
200031221013 has 16 divisors (see below), whose sum is σ = 290684856000. Its totient is φ = 121613048064.
The previous prime is 200031220997. The next prime is 200031221041. The reversal of 200031221013 is 310122130002.
It is not a de Polignac number, because 200031221013 - 24 = 200031220997 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 200031220983 and 200031221001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (200031221113) 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, 30894388 + ... + 30900861.
It is an arithmetic number, because the mean of its divisors is an integer number (18167803500).
Almost surely, 2200031221013 is an apocalyptic number.
It is an amenable number.
200031221013 is a deficient number, since it is larger than the sum of its proper divisors (90653634987).
200031221013 is a wasteful number, since it uses less digits than its factorization.
200031221013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 61795348.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 200031221013 its reverse (310122130002), we get a palindrome (510153351015).
The spelling of 200031221013 in words is "two hundred billion, thirty-one million, two hundred twenty-one thousand, thirteen".
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