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12031030130 = 2571223140533
BaseRepresentation
bin10110011010001101…
…01111001101110010
31011001110111122200112
423031012233031302
5144114420431010
65305454421322
7604066032410
oct131506571562
934043448615
1012031030130
115114226009
1223b9201842
13119970a652
14821bb82b0
154a634ea05
hex2cd1af372

12031030130 has 32 divisors (see below), whose sum is σ = 24769960704. Its totient is φ = 4121522496.

The previous prime is 12031030129. The next prime is 12031030133. The reversal of 12031030130 is 3103013021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (12031030133) 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 15 ways as a sum of consecutive naturals, for example, 15344 + ... + 155876.

It is an arithmetic number, because the mean of its divisors is an integer number (774061272).

Almost surely, 212031030130 is an apocalyptic number.

12031030130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12031030130 is an abundant number, since it is smaller than the sum of its proper divisors (12738930574).

12031030130 is a wasteful number, since it uses less digits than its factorization.

12031030130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141770.

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

Adding to 12031030130 its reverse (3103013021), we get a palindrome (15134043151).

The spelling of 12031030130 in words is "twelve billion, thirty-one million, thirty thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 1223 2446 6115 8561 12230 17122 42805 85610 140533 281066 702665 983731 1405330 1967462 4918655 9837310 171871859 343743718 859359295 1203103013 1718718590 2406206026 6015515065 12031030130