Base | Representation |
---|---|
bin | 111001010101011000… |
… | …0111001111110110100 |
3 | 102202210201120211221120 |
4 | 1302222300321332310 |
5 | 4004124223001122 |
6 | 132321251143540 |
7 | 11616061666464 |
oct | 1625260717664 |
9 | 382721524846 |
10 | 123124031412 |
11 | 48242340168 |
12 | 1ba41ba4bb0 |
13 | b7c24a7775 |
14 | 5d601d7ba4 |
15 | 330939975c |
hex | 1caac39fb4 |
123124031412 has 12 divisors (see below), whose sum is σ = 287289406656. Its totient is φ = 41041343800.
The previous prime is 123124031339. The next prime is 123124031413. The reversal of 123124031412 is 214130421321.
It is a tau number, because it is divible by the number of its divisors (12).
It is a super-2 number, since 2×1231240314122 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123124031413) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5130167964 + ... + 5130167987.
It is an arithmetic number, because the mean of its divisors is an integer number (23940783888).
Almost surely, 2123124031412 is an apocalyptic number.
123124031412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
123124031412 is an abundant number, since it is smaller than the sum of its proper divisors (164165375244).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
123124031412 is a wasteful number, since it uses less digits than its factorization.
123124031412 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10260335958 (or 10260335956 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 24.
Adding to 123124031412 its reverse (214130421321), we get a palindrome (337254452733).
The spelling of 123124031412 in words is "one hundred twenty-three billion, one hundred twenty-four million, thirty-one thousand, four hundred twelve".
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