Base | Representation |
---|---|
bin | 10001001000100110… |
… | …110100101101011011 |
3 | 1202111012002112202121 |
4 | 101020212310231123 |
5 | 300134342143412 |
6 | 12241341042111 |
7 | 1220630320525 |
oct | 211046645533 |
9 | 52435075677 |
10 | 18398006107 |
11 | 7891216328 |
12 | 3695556337 |
13 | 1972824460 |
14 | c67632a15 |
15 | 72a2c6107 |
hex | 4489b4b5b |
18398006107 has 8 divisors (see below), whose sum is σ = 20674682784. Its totient is φ = 16244393088.
The previous prime is 18398006093. The next prime is 18398006111. The reversal of 18398006107 is 70160089381.
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 18398006107 - 27 = 18398005979 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (18398016107) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30765598 + ... + 30766195.
It is an arithmetic number, because the mean of its divisors is an integer number (2584335348).
Almost surely, 218398006107 is an apocalyptic number.
18398006107 is a deficient number, since it is larger than the sum of its proper divisors (2276676677).
18398006107 is a wasteful number, since it uses less digits than its factorization.
18398006107 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 61531829.
The product of its (nonzero) digits is 72576, while the sum is 43.
The spelling of 18398006107 in words is "eighteen billion, three hundred ninety-eight million, six thousand, one hundred seven".
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