Base | Representation |
---|---|
bin | 10110101110101111… |
… | …01000001110110011 |
3 | 1011111110112022200100 |
4 | 23113113220032303 |
5 | 144443011331011 |
6 | 5334525323443 |
7 | 611256513261 |
oct | 132727501663 |
9 | 34443468610 |
10 | 12203230131 |
11 | 51a2450464 |
12 | 2446a06583 |
13 | 11c62b0141 |
14 | 83aa01431 |
15 | 4b6516d56 |
hex | 2d75e83b3 |
12203230131 has 48 divisors (see below), whose sum is σ = 18710546400. Its totient is φ = 7652391936.
The previous prime is 12203230103. The next prime is 12203230157. The reversal of 12203230131 is 13103230221.
It is not a de Polignac number, because 12203230131 - 211 = 12203228083 is a prime.
It is a super-2 number, since 2×122032301312 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12203230331) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1736581 + ... + 1743593.
It is an arithmetic number, because the mean of its divisors is an integer number (389803050).
Almost surely, 212203230131 is an apocalyptic number.
12203230131 is a deficient number, since it is larger than the sum of its proper divisors (6507316269).
12203230131 is a wasteful number, since it uses less digits than its factorization.
12203230131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7220 (or 7217 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 12203230131 its reverse (13103230221), we get a palindrome (25306460352).
The spelling of 12203230131 in words is "twelve billion, two hundred three million, two hundred thirty thousand, one hundred thirty-one".
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