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12223200320 = 26538197501
BaseRepresentation
bin10110110001000111…
…10011110001000000
31011112212002220121222
423120203303301000
5200013114402240
65340521334212
7611621326352
oct133043636100
934485086558
1012223200320
115202750351
122451637368
1311ca482b16
1483d51d0d2
154b815deb5
hex2d88f3c40

12223200320 has 28 divisors (see below), whose sum is σ = 29106496524. Its totient is φ = 4889280000.

The previous prime is 12223200239. The next prime is 12223200383. The reversal of 12223200320 is 2300232221.

It can be written as a sum of positive squares in 2 ways, for example, as 6524762176 + 5698438144 = 80776^2 + 75488^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19098431 + ... + 19099070.

It is an arithmetic number, because the mean of its divisors is an integer number (1039517733).

Almost surely, 212223200320 is an apocalyptic number.

12223200320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12223200320 is an abundant number, since it is smaller than the sum of its proper divisors (16883296204).

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

12223200320 is an equidigital number, since it uses as much as digits as its factorization.

12223200320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38197518 (or 38197508 counting only the distinct ones).

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

Adding to 12223200320 its reverse (2300232221), we get a palindrome (14523432541).

The spelling of 12223200320 in words is "twelve billion, two hundred twenty-three million, two hundred thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 38197501 76395002 152790004 190987505 305580008 381975010 611160016 763950020 1222320032 1527900040 2444640064 3055800080 6111600160 12223200320