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12311142430 = 2513960114737
BaseRepresentation
bin10110111011100110…
…10010000000011110
31011202222120211112011
423131303102000132
5200203123024210
65353342301434
7614036661346
oct133563220036
934688524464
1012311142430
115248356584
122476b8787a
131212764182
1484b091d26
154c0c30d8a
hex2ddcd201e

12311142430 has 32 divisors (see below), whose sum is σ = 22358135520. Its totient is φ = 4880563200.

The previous prime is 12311142407. The next prime is 12311142461. The reversal of 12311142430 is 3424111321.

12311142430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 828022 + ... + 842758.

It is an arithmetic number, because the mean of its divisors is an integer number (698691735).

Almost surely, 212311142430 is an apocalyptic number.

12311142430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311142430 is a deficient number, since it is larger than the sum of its proper divisors (10046993090).

12311142430 is a wasteful number, since it uses less digits than its factorization.

12311142430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15484.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12311142430 its reverse (3424111321), we get a palindrome (15735253751).

The spelling of 12311142430 in words is "twelve billion, three hundred eleven million, one hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 139 278 601 695 1202 1390 3005 6010 14737 29474 73685 83539 147370 167078 417695 835390 2048443 4096886 8856937 10242215 17713874 20484430 44284685 88569370 1231114243 2462228486 6155571215 12311142430