Base | Representation |
---|---|
bin | 111011111111111… |
… | …1001101110100111 |
3 | 12012022021012102000 |
4 | 1313333321232213 |
5 | 13110342141411 |
6 | 531434420343 |
7 | 100614155022 |
oct | 16777715647 |
9 | 5168235360 |
10 | 2013240231 |
11 | 943470202 |
12 | 4822916b3 |
13 | 261131a12 |
14 | 1515441b9 |
15 | bbb2a956 |
hex | 77ff9ba7 |
2013240231 has 16 divisors (see below), whose sum is σ = 2983384800. Its totient is φ = 1341797184.
The previous prime is 2013240197. The next prime is 2013240239. The reversal of 2013240231 is 1320423102.
2013240231 is a `hidden beast` number, since 201 + 32 + 402 + 31 = 666.
It is not a de Polignac number, because 2013240231 - 26 = 2013240167 is a prime.
It is a super-2 number, since 2×20132402312 = 8106272455433866722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2013240239) 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, 124035 + ... + 139323.
It is an arithmetic number, because the mean of its divisors is an integer number (186461550).
Almost surely, 22013240231 is an apocalyptic number.
2013240231 is a deficient number, since it is larger than the sum of its proper divisors (970144569).
2013240231 is a wasteful number, since it uses less digits than its factorization.
2013240231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20175 (or 20169 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 2013240231 is about 44869.1456459782. The cubic root of 2013240231 is about 1262.6952114050.
Adding to 2013240231 its reverse (1320423102), we get a palindrome (3333663333).
The spelling of 2013240231 in words is "two billion, thirteen million, two hundred forty thousand, two hundred thirty-one".
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