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12243011830 = 257337351853
BaseRepresentation
bin10110110011011110…
…11000100011110110
31011121020101102220121
423121233120203312
5200033202334310
65342510122154
7612251612020
oct133157304366
934536342817
1012243011830
115212951aa5
1224581b035a
1312015cb4ca
14841dd9010
154b9c740da
hex2d9bd88f6

12243011830 has 32 divisors (see below), whose sum is σ = 25193577024. Its totient is φ = 4196278656.

The previous prime is 12243011821. The next prime is 12243011831. The reversal of 12243011830 is 3811034221.

It is a happy number.

It is a super-4 number, since 4×122430118304 (a number of 41 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12243011795 and 12243011804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12243011831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210184 + ... + 262036.

It is an arithmetic number, because the mean of its divisors is an integer number (787299282).

Almost surely, 212243011830 is an apocalyptic number.

12243011830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12243011830 is an abundant number, since it is smaller than the sum of its proper divisors (12950565194).

12243011830 is a wasteful number, since it uses less digits than its factorization.

12243011830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55240.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 12243011830 in words is "twelve billion, two hundred forty-three million, eleven thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 3373 6746 16865 23611 33730 47222 51853 103706 118055 236110 259265 362971 518530 725942 1814855 3629710 174900169 349800338 874500845 1224301183 1749001690 2448602366 6121505915 12243011830