Base | Representation |
---|---|
bin | 100100111101001… |
… | …0101111111100001 |
3 | 10012102100010000112 |
4 | 1021322111333201 |
5 | 10014421444301 |
6 | 323014101105 |
7 | 42505043213 |
oct | 11172257741 |
9 | 3172303015 |
10 | 1240031201 |
11 | 586a68882 |
12 | 2a734a795 |
13 | 169b9c296 |
14 | ba9905b3 |
15 | 73ce69bb |
hex | 49e95fe1 |
1240031201 has 2 divisors, whose sum is σ = 1240031202. Its totient is φ = 1240031200.
The previous prime is 1240031173. The next prime is 1240031203. The reversal of 1240031201 is 1021300421.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 754930576 + 485100625 = 27476^2 + 22025^2 .
It is an emirp because it is prime and its reverse (1021300421) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1240031201 - 214 = 1240014817 is a prime.
Together with 1240031203, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (1240031203) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620015600 + 620015601.
It is an arithmetic number, because the mean of its divisors is an integer number (620015601).
Almost surely, 21240031201 is an apocalyptic number.
It is an amenable number.
1240031201 is a deficient number, since it is larger than the sum of its proper divisors (1).
1240031201 is an equidigital number, since it uses as much as digits as its factorization.
1240031201 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 1240031201 is about 35214.0767449610. The cubic root of 1240031201 is about 1074.3460817712.
Adding to 1240031201 its reverse (1021300421), we get a palindrome (2261331622).
The spelling of 1240031201 in words is "one billion, two hundred forty million, thirty-one thousand, two hundred one".
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