Base | Representation |
---|---|
bin | 10110110010000100… |
… | …10001011111110111 |
3 | 1011120102010122111120 |
4 | 23121002101133313 |
5 | 200022140431143 |
6 | 5341404435023 |
7 | 612046240431 |
oct | 133102213767 |
9 | 34512118446 |
10 | 12231186423 |
11 | 5207205435 |
12 | 2454248a73 |
13 | 11cc01ab21 |
14 | 8405db651 |
15 | 4b8bda383 |
hex | 2d90917f7 |
12231186423 has 16 divisors (see below), whose sum is σ = 16660300800. Its totient is φ = 7978203936.
The previous prime is 12231186397. The next prime is 12231186437. The reversal of 12231186423 is 32468113221.
It is not a de Polignac number, because 12231186423 - 213 = 12231178231 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12231186223) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531153 + ... + 553701.
It is an arithmetic number, because the mean of its divisors is an integer number (1041268800).
Almost surely, 212231186423 is an apocalyptic number.
12231186423 is a deficient number, since it is larger than the sum of its proper divisors (4429114377).
12231186423 is a wasteful number, since it uses less digits than its factorization.
12231186423 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26446.
The product of its digits is 13824, while the sum is 33.
Adding to 12231186423 its reverse (32468113221), we get a palindrome (44699299644).
The spelling of 12231186423 in words is "twelve billion, two hundred thirty-one million, one hundred eighty-six thousand, four hundred twenty-three".
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