Base | Representation |
---|---|
bin | 11000011100100000… |
… | …01000000011110111 |
3 | 1020212122010210112000 |
4 | 30032100020003313 |
5 | 203334221311411 |
6 | 10010141030343 |
7 | 643140150333 |
oct | 141620100367 |
9 | 36778123460 |
10 | 13124010231 |
11 | 5625186152 |
12 | 26632553b3 |
13 | 1311ca1037 |
14 | 8c700a7c3 |
15 | 51c29a956 |
hex | 30e4080f7 |
13124010231 has 16 divisors (see below), whose sum is σ = 19447135200. Its totient is φ = 8747469504.
The previous prime is 13124010203. The next prime is 13124010253. The reversal of 13124010231 is 13201042131.
13124010231 is a `hidden beast` number, since 1 + 31 + 2 + 401 + 0 + 231 = 666.
It is not a de Polignac number, because 13124010231 - 25 = 13124010199 is a prime.
It is a super-2 number, since 2×131240102312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13124010331) 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, 83035 + ... + 182051.
It is an arithmetic number, because the mean of its divisors is an integer number (1215445950).
Almost surely, 213124010231 is an apocalyptic number.
13124010231 is a deficient number, since it is larger than the sum of its proper divisors (6323124969).
13124010231 is an equidigital number, since it uses as much as digits as its factorization.
13124010231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 103935 (or 103929 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 13124010231 its reverse (13201042131), we get a palindrome (26325052362).
The spelling of 13124010231 in words is "thirteen billion, one hundred twenty-four million, ten thousand, two hundred thirty-one".
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