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12345132118 = 211561142369
BaseRepresentation
bin10110111111101001…
…11100010001010110
31011212100112200121111
423133310330101112
5200240323211433
65400555005234
7614631614554
oct133764742126
934770480544
1012345132118
115265561530
12248643981a
131219805107
148517bcbd4
154c3be6dcd
hex2dfd3c456

12345132118 has 8 divisors (see below), whose sum is σ = 20201125320. Its totient is φ = 5611423680.

The previous prime is 12345132109. The next prime is 12345132167. The reversal of 12345132118 is 81123154321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12345132118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280571163 + ... + 280571206.

It is an arithmetic number, because the mean of its divisors is an integer number (2525140665).

Almost surely, 212345132118 is an apocalyptic number.

12345132118 is a deficient number, since it is larger than the sum of its proper divisors (7855993202).

12345132118 is a wasteful number, since it uses less digits than its factorization.

12345132118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561142382.

The product of its digits is 5760, while the sum is 31.

Adding to 12345132118 its reverse (81123154321), we get a palindrome (93468286439).

The spelling of 12345132118 in words is "twelve billion, three hundred forty-five million, one hundred thirty-two thousand, one hundred eighteen".

Divisors: 1 2 11 22 561142369 1122284738 6172566059 12345132118