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12030030131 = 72245510819
BaseRepresentation
bin10110011010000101…
…11011000100110011
31011001101121211221112
423031002323010303
5144114141431011
65305421143535
7604054366100
oct131502730463
934041554845
1012030030131
115113702769
1223b89babab
13119944a432
148219d7aa7
154a620358b
hex2cd0bb133

12030030131 has 6 divisors (see below), whose sum is σ = 13994116740. Its totient is φ = 10311454356.

The previous prime is 12030030107. The next prime is 12030030151. The reversal of 12030030131 is 13103003021.

12030030131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12030030131 - 222 = 12025835827 is a prime.

It is a super-2 number, since 2×120300301312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12030030151) 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 5 ways as a sum of consecutive naturals, for example, 122755361 + ... + 122755458.

It is an arithmetic number, because the mean of its divisors is an integer number (2332352790).

Almost surely, 212030030131 is an apocalyptic number.

12030030131 is a deficient number, since it is larger than the sum of its proper divisors (1964086609).

12030030131 is an equidigital number, since it uses as much as digits as its factorization.

12030030131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245510833 (or 245510826 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 12030030131 its reverse (13103003021), we get a palindrome (25133033152).

The spelling of 12030030131 in words is "twelve billion, thirty million, thirty thousand, one hundred thirty-one".

Divisors: 1 7 49 245510819 1718575733 12030030131