Search a number
-
+
30140122013 = 109127626143
BaseRepresentation
bin11100000100011111…
…011100001110011101
32212210111221211122022
4130010133130032131
5443211332401023
621502435225525
72114620544561
oct340437341635
985714854568
1030140122013
1111867349851
125a11a482a5
132ac4415b31
14165ccc16a1
15bb60a67c8
hex7047dc39d

30140122013 has 4 divisors (see below), whose sum is σ = 30167749248. Its totient is φ = 30112494780.

The previous prime is 30140121953. The next prime is 30140122043. The reversal of 30140122013 is 31022104103.

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: 31022104103 = 79633895781.

It is a cyclic number.

It is not a de Polignac number, because 30140122013 - 226 = 30073013149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30140121982 and 30140122000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140122043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13811981 + ... + 13814162.

It is an arithmetic number, because the mean of its divisors is an integer number (7541937312).

Almost surely, 230140122013 is an apocalyptic number.

It is an amenable number.

30140122013 is a deficient number, since it is larger than the sum of its proper divisors (27627235).

30140122013 is a wasteful number, since it uses less digits than its factorization.

30140122013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27627234.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30140122013 its reverse (31022104103), we get a palindrome (61162226116).

The spelling of 30140122013 in words is "thirty billion, one hundred forty million, one hundred twenty-two thousand, thirteen".

Divisors: 1 1091 27626143 30140122013