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12143442300 = 22352113679831
BaseRepresentation
bin10110100111100111…
…00011100101111100
31011100022000210012020
423103303203211330
5144332210123200
65324552040140
7606632361603
oct132363434574
934308023166
1012143442300
115171724a30
12242a993050
1311b6aa8922
14832abaa3a
154b1156ea0
hex2d3ce397c

12143442300 has 72 divisors (see below), whose sum is σ = 38329130112. Its totient is φ = 2943864000.

The previous prime is 12143442253. The next prime is 12143442307. The reversal of 12143442300 is 324434121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143442307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1836616 + ... + 1843215.

Almost surely, 212143442300 is an apocalyptic number.

12143442300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12143442300 is an abundant number, since it is smaller than the sum of its proper divisors (26185687812).

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

12143442300 is a wasteful number, since it uses less digits than its factorization.

12143442300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679859 (or 3679852 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12143442300 its reverse (324434121), we get a palindrome (12467876421).

The spelling of 12143442300 in words is "twelve billion, one hundred forty-three million, four hundred forty-two thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 25 30 33 44 50 55 60 66 75 100 110 132 150 165 220 275 300 330 550 660 825 1100 1650 3300 3679831 7359662 11039493 14719324 18399155 22078986 36798310 40478141 44157972 55197465 73596620 80956282 91995775 110394930 121434423 161912564 183991550 202390705 220789860 242868846 275987325 367983100 404781410 485737692 551974650 607172115 809562820 1011953525 1103949300 1214344230 2023907050 2428688460 3035860575 4047814100 6071721150 12143442300