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30112323013 = 87587343799
BaseRepresentation
bin11100000010110101…
…011001010111000101
32212201120122111120201
4130002311121113011
5443132223314023
621500003330501
72114132344123
oct340265312705
985646574521
1030112323013
1111852691a73
125a04680a31
132abb731916
141659326913
15bb3914bad
hex702d595c5

30112323013 has 4 divisors (see below), whose sum is σ = 30112754400. Its totient is φ = 30111891628.

The previous prime is 30112323011. The next prime is 30112323037. The reversal of 30112323013 is 31032321103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31032321103 = 74433188729.

It is a cyclic number.

It is not a de Polignac number, because 30112323013 - 21 = 30112323011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112323011) 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, 84313 + ... + 259486.

It is an arithmetic number, because the mean of its divisors is an integer number (7528188600).

Almost surely, 230112323013 is an apocalyptic number.

It is an amenable number.

30112323013 is a deficient number, since it is larger than the sum of its proper divisors (431387).

30112323013 is an equidigital number, since it uses as much as digits as its factorization.

30112323013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431386.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30112323013 its reverse (31032321103), we get a palindrome (61144644116).

The spelling of 30112323013 in words is "thirty billion, one hundred twelve million, three hundred twenty-three thousand, thirteen".

Divisors: 1 87587 343799 30112323013