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12230343240 = 2335269378883
BaseRepresentation
bin10110110001111110…
…00011101001001000
31011120100112210212120
423120333003221020
5200021431440430
65341334411240
7612036126243
oct133077035110
934510483776
1012230343240
115206789995
122453b00b20
1311cbab40bb
1484045c25a
154b8ac0610
hex2d8fc3a48

12230343240 has 64 divisors (see below), whose sum is σ = 36827524800. Its totient is φ = 3249292032.

The previous prime is 12230343199. The next prime is 12230343247. The reversal of 12230343240 is 4234303221.

12230343240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12230343240.

It is not an unprimeable number, because it can be changed into a prime (12230343247) 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 15 ways as a sum of consecutive naturals, for example, 157162 + ... + 221721.

It is an arithmetic number, because the mean of its divisors is an integer number (575430075).

Almost surely, 212230343240 is an apocalyptic number.

12230343240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12230343240 is an abundant number, since it is smaller than the sum of its proper divisors (24597181560).

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

12230343240 is a wasteful number, since it uses less digits than its factorization.

12230343240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379166 (or 379162 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 12230343240 its reverse (4234303221), we get a palindrome (16464646461).

The spelling of 12230343240 in words is "twelve billion, two hundred thirty million, three hundred forty-three thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 269 538 807 1076 1345 1614 2152 2690 3228 4035 5380 6456 8070 10760 16140 32280 378883 757766 1136649 1515532 1894415 2273298 3031064 3788830 4546596 5683245 7577660 9093192 11366490 15155320 22732980 45465960 101919527 203839054 305758581 407678108 509597635 611517162 815356216 1019195270 1223034324 1528792905 2038390540 2446068648 3057585810 4076781080 6115171620 12230343240