Base | Representation |
---|---|
bin | 10111100101100101… |
… | …10001100101000111 |
3 | 1012200112021212121120 |
4 | 23302302301211013 |
5 | 201413303044033 |
6 | 5452323045023 |
7 | 625544352531 |
oct | 136262614507 |
9 | 35615255546 |
10 | 12663331143 |
11 | 5409136131 |
12 | 2554b10773 |
13 | 126a705668 |
14 | 881b6c851 |
15 | 4e1aed1b3 |
hex | 2f2cb1947 |
12663331143 has 16 divisors (see below), whose sum is σ = 17465548800. Its totient is φ = 8152806240.
The previous prime is 12663331061. The next prime is 12663331171. The reversal of 12663331143 is 34113336621.
It is not a de Polignac number, because 12663331143 - 28 = 12663330887 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12663331643) 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, 97588 + ... + 186681.
It is an arithmetic number, because the mean of its divisors is an integer number (1091596800).
Almost surely, 212663331143 is an apocalyptic number.
12663331143 is a deficient number, since it is larger than the sum of its proper divisors (4802217657).
12663331143 is a wasteful number, since it uses less digits than its factorization.
12663331143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 284782.
The product of its digits is 23328, while the sum is 33.
Adding to 12663331143 its reverse (34113336621), we get a palindrome (46776667764).
The spelling of 12663331143 in words is "twelve billion, six hundred sixty-three million, three hundred thirty-one thousand, one hundred forty-three".
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