Base | Representation |
---|---|
bin | 10000111000100000… |
… | …110101100001001001 |
3 | 1201210101000212112001 |
4 | 100320200311201021 |
5 | 244111232013342 |
6 | 12154453551001 |
7 | 1211141316103 |
oct | 207040654111 |
9 | 51711025461 |
10 | 18128001097 |
11 | 7762869598 |
12 | 361b045461 |
13 | 192b8c928b |
14 | c3d82a573 |
15 | 71173e8b7 |
hex | 438835849 |
18128001097 has 8 divisors (see below), whose sum is σ = 18686733696. Its totient is φ = 17576478192.
The previous prime is 18128001091. The next prime is 18128001173. The reversal of 18128001097 is 79010082181.
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 18128001097 - 211 = 18127999049 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (18128001091) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1797318 + ... + 1807375.
It is an arithmetic number, because the mean of its divisors is an integer number (2335841712).
Almost surely, 218128001097 is an apocalyptic number.
It is an amenable number.
18128001097 is a deficient number, since it is larger than the sum of its proper divisors (558732599).
18128001097 is a wasteful number, since it uses less digits than its factorization.
18128001097 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3604847.
The product of its (nonzero) digits is 8064, while the sum is 37.
The spelling of 18128001097 in words is "eighteen billion, one hundred twenty-eight million, one thousand, ninety-seven".
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