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12213302320 = 2451115913681
BaseRepresentation
bin10110101111111100…
…00011010000110000
31011112011111001010101
423113332003100300
5200003101133240
65335525242144
7611441233252
oct132776032060
934464431111
1012213302320
1151a80aa88a
12244a263354
1311c83c880b
1483c0a3cd2
154b735639a
hex2d7f83430

12213302320 has 40 divisors (see below), whose sum is σ = 28400548320. Its totient is φ = 4884526080.

The previous prime is 12213302317. The next prime is 12213302327. The reversal of 12213302320 is 2320331221.

12213302320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (12213302327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885880 + ... + 899560.

It is an arithmetic number, because the mean of its divisors is an integer number (710013708).

Almost surely, 212213302320 is an apocalyptic number.

12213302320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12213302320 is an abundant number, since it is smaller than the sum of its proper divisors (16187246000).

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

12213302320 is a wasteful number, since it uses less digits than its factorization.

12213302320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24853 (or 24847 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12213302320 its reverse (2320331221), we get a palindrome (14533633541).

The spelling of 12213302320 in words is "twelve billion, two hundred thirteen million, three hundred two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 11159 13681 22318 27362 44636 54724 55795 68405 89272 109448 111590 136810 178544 218896 223180 273620 446360 547240 892720 1094480 152666279 305332558 610665116 763331395 1221330232 1526662790 2442660464 3053325580 6106651160 12213302320