Base | Representation |
---|---|
bin | 10110110010000100… |
… | …11010011101100111 |
3 | 1011120102012111212120 |
4 | 23121002122131213 |
5 | 200022143120033 |
6 | 5341405321023 |
7 | 612046452456 |
oct | 133102323547 |
9 | 34512174776 |
10 | 12231223143 |
11 | 520722aa87 |
12 | 2454266173 |
13 | 11cc031759 |
14 | 84060ab9d |
15 | 4b8be61b3 |
hex | 2d909a767 |
12231223143 has 8 divisors (see below), whose sum is σ = 16310565888. Its totient is φ = 8153014584.
The previous prime is 12231223133. The next prime is 12231223181. The reversal of 12231223143 is 34132213221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12231223143 - 24 = 12231223127 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12231223133) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258055 + ... + 301752.
It is an arithmetic number, because the mean of its divisors is an integer number (2038820736).
Almost surely, 212231223143 is an apocalyptic number.
12231223143 is a deficient number, since it is larger than the sum of its proper divisors (4079342745).
12231223143 is an equidigital number, since it uses as much as digits as its factorization.
12231223143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 567093.
The product of its digits is 1728, while the sum is 24.
Adding to 12231223143 its reverse (34132213221), we get a palindrome (46363436364).
The spelling of 12231223143 in words is "twelve billion, two hundred thirty-one million, two hundred twenty-three thousand, one hundred forty-three".
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