Base | Representation |
---|---|
bin | 1011110100010110010… |
… | …1110101101110110111 |
3 | 201102001120122221212121 |
4 | 2331011211311232313 |
5 | 11311301414311411 |
6 | 233134323100411 |
7 | 20445204053350 |
oct | 2750545655667 |
9 | 642046587777 |
10 | 203031010231 |
11 | 79117792035 |
12 | 33422811707 |
13 | 161b827045a |
14 | 9b8087ad27 |
15 | 54345e1571 |
hex | 2f45975bb7 |
203031010231 has 8 divisors (see below), whose sum is σ = 232318072224. Its totient is φ = 173814606240.
The previous prime is 203031010229. The next prime is 203031010261. The reversal of 203031010231 is 132010130302.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 203031010231 - 21 = 203031010229 is a prime.
It is a super-2 number, since 2×2030310102312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (203031010211) 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, 17658340 + ... + 17669833.
It is an arithmetic number, because the mean of its divisors is an integer number (29039759028).
Almost surely, 2203031010231 is an apocalyptic number.
203031010231 is a deficient number, since it is larger than the sum of its proper divisors (29287061993).
203031010231 is an equidigital number, since it uses as much as digits as its factorization.
203031010231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35329001.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 203031010231 its reverse (132010130302), we get a palindrome (335041140533).
The spelling of 203031010231 in words is "two hundred three billion, thirty-one million, ten thousand, two hundred thirty-one".
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