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12311323010 = 25734997193
BaseRepresentation
bin10110111011100111…
…11110000110000010
31011202222221000020022
423131303332012002
5200203144314020
65353350213442
7614041343000
oct133563760602
934688830208
1012311323010
11524846a218
122477054282
1312127c841c
1484b0dba70
154c0c69625
hex2ddcfe182

12311323010 has 64 divisors (see below), whose sum is σ = 25898400000. Its totient is φ = 4211980416.

The previous prime is 12311322971. The next prime is 12311323027. The reversal of 12311323010 is 1032311321.

It is a self number, because there is not a number n which added to its sum of digits gives 12311323010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1707974 + ... + 1715166.

It is an arithmetic number, because the mean of its divisors is an integer number (404662500).

Almost surely, 212311323010 is an apocalyptic number.

12311323010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311323010 is an abundant number, since it is smaller than the sum of its proper divisors (13587076990).

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

12311323010 is an equidigital number, since it uses as much as digits as its factorization.

12311323010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7720 (or 7706 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12311323010 its reverse (1032311321), we get a palindrome (13343634331).

The spelling of 12311323010 in words is "twelve billion, three hundred eleven million, three hundred twenty-three thousand, ten".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 343 490 499 686 998 1715 2495 3430 3493 4990 6986 7193 14386 17465 24451 34930 35965 48902 50351 71930 100702 122255 171157 244510 251755 342314 352457 503510 704914 855785 1711570 1762285 2467199 3524570 3589307 4934398 7178614 12335995 17946535 24671990 25125149 35893070 50250298 125625745 175876043 251251490 351752086 879380215 1231132301 1758760430 2462264602 6155661505 12311323010