Base | Representation |
---|---|
bin | 111111000010010… |
… | …0001010100101111 |
3 | 12110101221221100012 |
4 | 1332010201110233 |
5 | 13312432124122 |
6 | 545514123435 |
7 | 103262113646 |
oct | 17604412457 |
9 | 5411857305 |
10 | 2115114287 |
11 | 995a21740 |
12 | 4b042057b |
13 | 279280520 |
14 | 160ca235d |
15 | c5a507e2 |
hex | 7e12152f |
2115114287 has 16 divisors (see below), whose sum is σ = 2552055072. Its totient is φ = 1726945920.
The previous prime is 2115114277. The next prime is 2115114307. The reversal of 2115114287 is 7824115112.
It is a cyclic number.
It is not a de Polignac number, because 2115114287 - 226 = 2048005423 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 (2115114227) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194588 + ... + 205169.
It is an arithmetic number, because the mean of its divisors is an integer number (159503442).
Almost surely, 22115114287 is an apocalyptic number.
2115114287 is a deficient number, since it is larger than the sum of its proper divisors (436940785).
2115114287 is a wasteful number, since it uses less digits than its factorization.
2115114287 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 399818.
The product of its digits is 4480, while the sum is 32.
The square root of 2115114287 is about 45990.3716771239. The cubic root of 2115114287 is about 1283.6440524892.
Adding to 2115114287 its reverse (7824115112), we get a palindrome (9939229399).
The spelling of 2115114287 in words is "two billion, one hundred fifteen million, one hundred fourteen thousand, two hundred eighty-seven".
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