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30202340009 = 85735241937
BaseRepresentation
bin11100001000001100…
…110010001010101001
32212221212000211200112
4130020030302022221
5443323244340014
621512540544105
72116304440262
oct341014621251
985855024615
1030202340009
1111899485086
125a2a852035
132b0428b50a
141667279969
15bbb79673e
hex7083322a9

30202340009 has 4 divisors (see below), whose sum is σ = 30237582804. Its totient is φ = 30167097216.

The previous prime is 30202339939. The next prime is 30202340011. The reversal of 30202340009 is 90004320203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90004320203 = 712857760029.

It can be written as a sum of positive squares in 2 ways, for example, as 20333904409 + 9868435600 = 142597^2 + 99340^2 .

It is a cyclic number.

It is not a de Polignac number, because 30202340009 - 232 = 25907372713 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 (30202340309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17620112 + ... + 17621825.

It is an arithmetic number, because the mean of its divisors is an integer number (7559395701).

Almost surely, 230202340009 is an apocalyptic number.

It is an amenable number.

30202340009 is a deficient number, since it is larger than the sum of its proper divisors (35242795).

30202340009 is an equidigital number, since it uses as much as digits as its factorization.

30202340009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35242794.

The product of its (nonzero) digits is 1296, while the sum is 23.

The spelling of 30202340009 in words is "thirty billion, two hundred two million, three hundred forty thousand, nine".

Divisors: 1 857 35241937 30202340009