Base | Representation |
---|---|
bin | 111010110001… |
… | …1111111000001 |
3 | 2010222201200100 |
4 | 1311203333001 |
5 | 30342140431 |
6 | 3020313013 |
7 | 522644046 |
oct | 165437701 |
9 | 63881610 |
10 | 30818241 |
11 | 1643a223 |
12 | a3a2769 |
13 | 650055c |
14 | 41431cd |
15 | 2a8b4e6 |
hex | 1d63fc1 |
30818241 has 6 divisors (see below), whose sum is σ = 44515250. Its totient is φ = 20545488.
The previous prime is 30818233. The next prime is 30818243. The reversal of 30818241 is 14281803.
It can be written as a sum of positive squares in only one way, i.e., 21818241 + 9000000 = 4671^2 + 3000^2 .
It is not a de Polignac number, because 30818241 - 23 = 30818233 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30818243) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1712116 + ... + 1712133.
Almost surely, 230818241 is an apocalyptic number.
It is an amenable number.
30818241 is a deficient number, since it is larger than the sum of its proper divisors (13697009).
30818241 is a wasteful number, since it uses less digits than its factorization.
30818241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3424255 (or 3424252 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 27.
The square root of 30818241 is about 5551.4179269805. The cubic root of 30818241 is about 313.5229106521.
The spelling of 30818241 in words is "thirty million, eight hundred eighteen thousand, two hundred forty-one".
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