Base | Representation |
---|---|
bin | 11000100111001010… |
… | …10100011101101111 |
3 | 1021002212102220202102 |
4 | 30103211110131233 |
5 | 204030120432033 |
6 | 10023054045315 |
7 | 645304330043 |
oct | 142345243557 |
9 | 37085386672 |
10 | 13213452143 |
11 | 5670716191 |
12 | 26891a983b |
13 | 1327688c48 |
14 | 8d4c50023 |
15 | 525066de8 |
hex | 31395476f |
13213452143 has 8 divisors (see below), whose sum is σ = 13283604000. Its totient is φ = 13143338208.
The previous prime is 13213452139. The next prime is 13213452151. The reversal of 13213452143 is 34125431231.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13213452143 - 22 = 13213452139 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13213152143) 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 7 ways as a sum of consecutive naturals, for example, 934853 + ... + 948881.
It is an arithmetic number, because the mean of its divisors is an integer number (1660450500).
Almost surely, 213213452143 is an apocalyptic number.
13213452143 is a deficient number, since it is larger than the sum of its proper divisors (70151857).
13213452143 is a wasteful number, since it uses less digits than its factorization.
13213452143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18961.
The product of its digits is 8640, while the sum is 29.
Adding to 13213452143 its reverse (34125431231), we get a palindrome (47338883374).
The spelling of 13213452143 in words is "thirteen billion, two hundred thirteen million, four hundred fifty-two thousand, one hundred forty-three".
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