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12220030232 = 238531790743
BaseRepresentation
bin10110110000101111…
…01101110100011000
31011112122010212002022
423120113231310120
5200011311431412
65340325354012
7611552354204
oct133027556430
934478125068
1012220030232
115200985643
122450568908
1311c9912c27
1483cd35b04
154b7c34a72
hex2d85edd18

12220030232 has 16 divisors (see below), whose sum is σ = 22939430640. Its totient is φ = 6102848736.

The previous prime is 12220030231. The next prime is 12220030243. The reversal of 12220030232 is 23203002221.

It is a self number, because there is not a number n which added to its sum of digits gives 12220030232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220030231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888548 + ... + 902195.

It is an arithmetic number, because the mean of its divisors is an integer number (1433714415).

Almost surely, 212220030232 is an apocalyptic number.

It is an amenable number.

12220030232 is a deficient number, since it is larger than the sum of its proper divisors (10719400408).

12220030232 is a wasteful number, since it uses less digits than its factorization.

12220030232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791602 (or 1791598 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 12220030232 its reverse (23203002221), we get a palindrome (35423032453).

The spelling of 12220030232 in words is "twelve billion, two hundred twenty million, thirty thousand, two hundred thirty-two".

Divisors: 1 2 4 8 853 1706 3412 6824 1790743 3581486 7162972 14325944 1527503779 3055007558 6110015116 12220030232