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12345215141 = 743912173301
BaseRepresentation
bin10110111111101010…
…10000100010100101
31011212100200220111102
423133311100202211
5200240333341031
65401000445445
7614632411610
oct133765204245
934770626442
1012345215141
115265608946
122486479885
131219833b3c
14851801177
154c3c117cb
hex2dfd508a5

12345215141 has 16 divisors (see below), whose sum is σ = 14156862720. Its totient is φ = 10545638400.

The previous prime is 12345215101. The next prime is 12345215171. The reversal of 12345215141 is 14151254321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12345215141 - 226 = 12278106277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345215101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3738191 + ... + 3741491.

It is an arithmetic number, because the mean of its divisors is an integer number (884803920).

Almost surely, 212345215141 is an apocalyptic number.

It is an amenable number.

12345215141 is a deficient number, since it is larger than the sum of its proper divisors (1811647579).

12345215141 is a wasteful number, since it uses less digits than its factorization.

12345215141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4964.

The product of its digits is 4800, while the sum is 29.

Adding to 12345215141 its reverse (14151254321), we get a palindrome (26496469462).

The spelling of 12345215141 in words is "twelve billion, three hundred forty-five million, two hundred fifteen thousand, one hundred forty-one".

Divisors: 1 7 439 1217 3073 3301 8519 23107 534263 1449139 3739841 4017317 10143973 28121219 1763602163 12345215141