Base | Representation |
---|---|
bin | 10001000100110111… |
… | …000111011101011101 |
3 | 1202022210212001120020 |
4 | 101010313013131131 |
5 | 300022300341344 |
6 | 12231214142353 |
7 | 1216235234211 |
oct | 210467073535 |
9 | 52283761506 |
10 | 18335168349 |
11 | 78597a73a3 |
12 | 36784b19b9 |
13 | 19627c2954 |
14 | c5d156941 |
15 | 724a12719 |
hex | 444dc775d |
18335168349 has 8 divisors (see below), whose sum is σ = 24461545440. Its totient is φ = 12216118416.
The previous prime is 18335168339. The next prime is 18335168353. The reversal of 18335168349 is 94386153381.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 18335168349 - 25 = 18335168317 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18335168339) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1825947 + ... + 1835960.
It is an arithmetic number, because the mean of its divisors is an integer number (3057693180).
Almost surely, 218335168349 is an apocalyptic number.
It is an amenable number.
18335168349 is a deficient number, since it is larger than the sum of its proper divisors (6126377091).
18335168349 is a wasteful number, since it uses less digits than its factorization.
18335168349 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3663579.
The product of its digits is 1866240, while the sum is 51.
The spelling of 18335168349 in words is "eighteen billion, three hundred thirty-five million, one hundred sixty-eight thousand, three hundred forty-nine".
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