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12200023020 = 2235203333717
BaseRepresentation
bin10110101110010110…
…11001001111101100
31011111020111101100110
423113023121033230
5144441201214040
65334332500020
7611220325143
oct132713311754
934436441313
1012200023020
1151a065a959
12244591a610
1311c5729443
1483a40875a
154b60d1980
hex2d72d93ec

12200023020 has 24 divisors (see below), whose sum is σ = 34160064624. Its totient is φ = 3253339456.

The previous prime is 12200023013. The next prime is 12200023097. The reversal of 12200023020 is 2032000221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12200022987 and 12200023005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101666799 + ... + 101666918.

It is an arithmetic number, because the mean of its divisors is an integer number (1423336026).

Almost surely, 212200023020 is an apocalyptic number.

12200023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200023020 is an abundant number, since it is smaller than the sum of its proper divisors (21960041604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12200023020 is a wasteful number, since it uses less digits than its factorization.

12200023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203333729 (or 203333727 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 12200023020 its reverse (2032000221), we get a palindrome (14232023241).

The spelling of 12200023020 in words is "twelve billion, two hundred million, twenty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 203333717 406667434 610001151 813334868 1016668585 1220002302 2033337170 2440004604 3050005755 4066674340 6100011510 12200023020