Base | Representation |
---|---|
bin | 11011100010101… |
… | …01111110000101 |
3 | 121002201222201120 |
4 | 31301111332011 |
5 | 433121220403 |
6 | 34531544153 |
7 | 5503540443 |
oct | 1561257605 |
9 | 532658646 |
10 | 231038853 |
11 | 109462a01 |
12 | 6545b059 |
13 | 38b340a6 |
14 | 22981b93 |
15 | 1543ae53 |
hex | dc55f85 |
231038853 has 16 divisors (see below), whose sum is σ = 319619520. Its totient is φ = 148273664.
The previous prime is 231038851. The next prime is 231038861. The reversal of 231038853 is 358830132.
It is a cyclic number.
It is not a de Polignac number, because 231038853 - 21 = 231038851 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231038851) 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, 26950 + ... + 34472.
It is an arithmetic number, because the mean of its divisors is an integer number (19976220).
Almost surely, 2231038853 is an apocalyptic number.
It is an amenable number.
231038853 is a deficient number, since it is larger than the sum of its proper divisors (88580667).
231038853 is a wasteful number, since it uses less digits than its factorization.
231038853 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7908.
The product of its (nonzero) digits is 17280, while the sum is 33.
The square root of 231038853 is about 15199.9622696900. The cubic root of 231038853 is about 613.6136423182.
Adding to 231038853 its reverse (358830132), we get a palindrome (589868985).
The spelling of 231038853 in words is "two hundred thirty-one million, thirty-eight thousand, eight hundred fifty-three".
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