Base | Representation |
---|---|
bin | 111111110111011… |
… | …1100010110010001 |
3 | 12112100110022010202 |
4 | 1333232330112101 |
5 | 13342102342431 |
6 | 552352104545 |
7 | 104051206046 |
oct | 17756742621 |
9 | 5470408122 |
10 | 2143012241 |
11 | 9aa7468a7 |
12 | 4b9835155 |
13 | 281c9a7a6 |
14 | 1648851cd |
15 | c82118cb |
hex | 7fbbc591 |
2143012241 has 4 divisors (see below), whose sum is σ = 2173195584. Its totient is φ = 2112828900.
The previous prime is 2143012187. The next prime is 2143012259. The reversal of 2143012241 is 1422103412.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 2143012241 - 26 = 2143012177 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2143015241) 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, 15091565 + ... + 15091706.
It is an arithmetic number, because the mean of its divisors is an integer number (543298896).
Almost surely, 22143012241 is an apocalyptic number.
It is an amenable number.
2143012241 is a deficient number, since it is larger than the sum of its proper divisors (30183343).
2143012241 is an equidigital number, since it uses as much as digits as its factorization.
2143012241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30183342.
The product of its (nonzero) digits is 384, while the sum is 20.
The square root of 2143012241 is about 46292.6802097265. The cubic root of 2143012241 is about 1289.2630931369.
Adding to 2143012241 its reverse (1422103412), we get a palindrome (3565115653).
The spelling of 2143012241 in words is "two billion, one hundred forty-three million, twelve thousand, two hundred forty-one".
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