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3030301993 = 8934048337
BaseRepresentation
bin1011010010011110…
…1011110100101001
321211012001021212011
42310213223310221
522201224130433
61220405515521
7135044066455
oct26447536451
97735037764
103030301993
111315587814
12706a12ba1
13393a63b04
1420a653665
1512b07c3cd
hexb49ebd29

3030301993 has 4 divisors (see below), whose sum is σ = 3064350420. Its totient is φ = 2996253568.

The previous prime is 3030301943. The next prime is 3030302027. The reversal of 3030301993 is 3991030303.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1827391504 + 1202910489 = 42748^2 + 34683^2 .

It is a cyclic number.

It is not a de Polignac number, because 3030301993 - 217 = 3030170921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3030301913) 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, 17024080 + ... + 17024257.

It is an arithmetic number, because the mean of its divisors is an integer number (766087605).

Almost surely, 23030301993 is an apocalyptic number.

It is an amenable number.

3030301993 is a deficient number, since it is larger than the sum of its proper divisors (34048427).

3030301993 is an equidigital number, since it uses as much as digits as its factorization.

3030301993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34048426.

The product of its (nonzero) digits is 6561, while the sum is 31.

The square root of 3030301993 is about 55048.1788345446. The cubic root of 3030301993 is about 1447.0892051210.

The spelling of 3030301993 in words is "three billion, thirty million, three hundred one thousand, nine hundred ninety-three".

Divisors: 1 89 34048337 3030301993