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12313041018 = 2315173318541
BaseRepresentation
bin10110111011110101…
…00001100001111010
31011210010011021220020
423131322201201322
5200204114303033
65353451111310
7614062056525
oct133572414172
934703137806
1012313041018
115249432a63
122477742536
131212c7a3b5
1484b427bbc
154c0ea86b3
hex2ddea187a

12313041018 has 32 divisors (see below), whose sum is σ = 24824326272. Its totient is φ = 4071384000.

The previous prime is 12313041017. The next prime is 12313041043. The reversal of 12313041018 is 81014031321.

It is a super-2 number, since 2×123130410182 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12313041017) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 654828 + ... + 673368.

It is an arithmetic number, because the mean of its divisors is an integer number (775760196).

Almost surely, 212313041018 is an apocalyptic number.

12313041018 is an abundant number, since it is smaller than the sum of its proper divisors (12511285254).

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

12313041018 is a wasteful number, since it uses less digits than its factorization.

12313041018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19430.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 12313041018 its reverse (81014031321), we get a palindrome (93327072339).

The spelling of 12313041018 in words is "twelve billion, three hundred thirteen million, forty-one thousand, eighteen".

Divisors: 1 2 3 6 151 302 453 733 906 1466 2199 4398 18541 37082 55623 110683 111246 221366 332049 664098 2799691 5599382 8399073 13590553 16798146 27181106 40771659 81543318 2052173503 4104347006 6156520509 12313041018