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12311320600 = 2352541113783
BaseRepresentation
bin10110111011100111…
…11101100000011000
31011202222220212221001
423131303331200120
5200203144224400
65353350154344
7614041332655
oct133563754030
934688825831
1012311320600
115248468427
1224770529b4
1312127c72b7
1484b0dac2c
154c0c68a6a
hex2ddcfd818

12311320600 has 48 divisors (see below), whose sum is σ = 28676981520. Its totient is φ = 4915382400.

The previous prime is 12311320589. The next prime is 12311320621. The reversal of 12311320600 is 602311321.

It is a super-3 number, since 3×123113206003 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 51309 + ... + 165091.

It is an arithmetic number, because the mean of its divisors is an integer number (597437115).

Almost surely, 212311320600 is an apocalyptic number.

12311320600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12311320600 is an abundant number, since it is smaller than the sum of its proper divisors (16365660920).

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

12311320600 is a wasteful number, since it uses less digits than its factorization.

12311320600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114340 (or 114331 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12311320600 its reverse (602311321), we get a palindrome (12913631921).

The spelling of 12311320600 in words is "twelve billion, three hundred eleven million, three hundred twenty thousand, six hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 541 1082 2164 2705 4328 5410 10820 13525 21640 27050 54100 108200 113783 227566 455132 568915 910264 1137830 2275660 2844575 4551320 5689150 11378300 22756600 61556603 123113206 246226412 307783015 492452824 615566030 1231132060 1538915075 2462264120 3077830150 6155660300 12311320600