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30423042697 = 269113096813
BaseRepresentation
bin11100010101010110…
…101100101010001001
32220112020022200212011
4130111112230222021
5444301244331242
621550503215521
72124624411325
oct342526545211
986466280764
1030423042697
11119a20182a3
125a907475a1
132b3ac13a18
1416886ca985
15bd0d3ed17
hex7155aca89

30423042697 has 4 divisors (see below), whose sum is σ = 30536139780. Its totient is φ = 30309945616.

The previous prime is 30423042679. The next prime is 30423042709. The reversal of 30423042697 is 79624032403.

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 3935805696 + 26487237001 = 62736^2 + 162749^2 .

It is a cyclic number.

It is not a de Polignac number, because 30423042697 - 219 = 30422518409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30423052697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56548138 + ... + 56548675.

It is an arithmetic number, because the mean of its divisors is an integer number (7634034945).

Almost surely, 230423042697 is an apocalyptic number.

It is an amenable number.

30423042697 is a deficient number, since it is larger than the sum of its proper divisors (113097083).

30423042697 is a wasteful number, since it uses less digits than its factorization.

30423042697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113097082.

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 30423042697 in words is "thirty billion, four hundred twenty-three million, forty-two thousand, six hundred ninety-seven".

Divisors: 1 269 113096813 30423042697