Base | Representation |
---|---|
bin | 1110110011000… |
… | …01011110011111 |
3 | 22122120112001000 |
4 | 13121201132133 |
5 | 223234144411 |
6 | 20152321343 |
7 | 3035045430 |
oct | 731413637 |
9 | 278515030 |
10 | 124131231 |
11 | 640836a4 |
12 | 356a3253 |
13 | 1c942443 |
14 | 126b3487 |
15 | ad6e956 |
hex | 766179f |
124131231 has 64 divisors (see below), whose sum is σ = 219018240. Its totient is φ = 68014080.
The previous prime is 124131209. The next prime is 124131233. The reversal of 124131231 is 132131421.
It is not a de Polignac number, because 124131231 - 26 = 124131167 is a prime.
It is a super-2 number, since 2×1241312312 = 30817125019150722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (124131233) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 643071 + ... + 643263.
It is an arithmetic number, because the mean of its divisors is an integer number (3422160).
Almost surely, 2124131231 is an apocalyptic number.
124131231 is a deficient number, since it is larger than the sum of its proper divisors (94887009).
124131231 is a wasteful number, since it uses less digits than its factorization.
124131231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 333 (or 327 counting only the distinct ones).
The product of its digits is 144, while the sum is 18.
The square root of 124131231 is about 11141.4196133168. The cubic root of 124131231 is about 498.8389473336.
Adding to 124131231 its reverse (132131421), we get a palindrome (256262652).
The spelling of 124131231 in words is "one hundred twenty-four million, one hundred thirty-one thousand, two hundred thirty-one".
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