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30818241 = 323424249
BaseRepresentation
bin111010110001…
…1111111000001
32010222201200100
41311203333001
530342140431
63020313013
7522644046
oct165437701
963881610
1030818241
111643a223
12a3a2769
13650055c
1441431cd
152a8b4e6
hex1d63fc1

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".

Divisors: 1 3 9 3424249 10272747 30818241