Base | Representation |
---|---|
bin | 10010110100000100… |
… | …110100001001010110 |
3 | 1221010211210122212211 |
4 | 102310010310021112 |
5 | 312332430431410 |
6 | 13140310104034 |
7 | 1313412631603 |
oct | 226404641126 |
9 | 57124718784 |
10 | 20201030230 |
11 | 8626a56007 |
12 | 3ab934b01a |
13 | 1b9c232b34 |
14 | d98c956aa |
15 | 7d372a68a |
hex | 4b4134256 |
20201030230 has 32 divisors (see below), whose sum is σ = 37956856320. Its totient is φ = 7733128320.
The previous prime is 20201030137. The next prime is 20201030233. The reversal of 20201030230 is 3203010202.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 20201030230.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20201030233) 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, 424950 + ... + 470089.
It is an arithmetic number, because the mean of its divisors is an integer number (1186151760).
Almost surely, 220201030230 is an apocalyptic number.
20201030230 is a deficient number, since it is larger than the sum of its proper divisors (17755826090).
20201030230 is a wasteful number, since it uses less digits than its factorization.
20201030230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 895144.
The product of its (nonzero) digits is 72, while the sum is 13.
Adding to 20201030230 its reverse (3203010202), we get a palindrome (23404040432).
The spelling of 20201030230 in words is "twenty billion, two hundred one million, thirty thousand, two hundred thirty".
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