Base | Representation |
---|---|
bin | 1110110100011… |
… | …01101001000011 |
3 | 22122220201012000 |
4 | 13122031221003 |
5 | 223310442011 |
6 | 20200235043 |
7 | 3036431016 |
oct | 732155103 |
9 | 278821160 |
10 | 124312131 |
11 | 641975a9 |
12 | 3576ba83 |
13 | 1c9a6898 |
14 | 1271d37d |
15 | ada8356 |
hex | 768da43 |
124312131 has 16 divisors (see below), whose sum is σ = 184579200. Its totient is φ = 82688904.
The previous prime is 124312103. The next prime is 124312141. The reversal of 124312131 is 131213421.
It is not a de Polignac number, because 124312131 - 213 = 124303939 is a prime.
It is a super-2 number, since 2×1243121312 = 30907011827522322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (124312141) 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, 7680 + ... + 17538.
It is an arithmetic number, because the mean of its divisors is an integer number (11536200).
Almost surely, 2124312131 is an apocalyptic number.
124312131 is a deficient number, since it is larger than the sum of its proper divisors (60267069).
124312131 is an equidigital number, since it uses as much as digits as its factorization.
124312131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10335 (or 10329 counting only the distinct ones).
The product of its digits is 144, while the sum is 18.
The square root of 124312131 is about 11149.5350127259. The cubic root of 124312131 is about 499.0811538110.
Adding to 124312131 its reverse (131213421), we get a palindrome (255525552).
The spelling of 124312131 in words is "one hundred twenty-four million, three hundred twelve thousand, one hundred thirty-one".
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