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12040304316 = 2232343624291
BaseRepresentation
bin10110011011010100…
…00111011010111100
31011002002221211110220
423031222013122330
5144124304214231
65310425301340
7604240620015
oct131552073274
934062854426
1012040304316
11511948a927
122400334850
13119b606a31
1482311000c
154a7082896
hex2cda876bc

12040304316 has 24 divisors (see below), whose sum is σ = 29315524224. Its totient is φ = 3838937520.

The previous prime is 12040304291. The next prime is 12040304317. The reversal of 12040304316 is 61340304021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040304317) 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 7 ways as a sum of consecutive naturals, for example, 21811870 + ... + 21812421.

It is an arithmetic number, because the mean of its divisors is an integer number (1221480176).

Almost surely, 212040304316 is an apocalyptic number.

It is an amenable number.

12040304316 is an abundant number, since it is smaller than the sum of its proper divisors (17275219908).

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

12040304316 is a wasteful number, since it uses less digits than its factorization.

12040304316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43624321 (or 43624319 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12040304316 its reverse (61340304021), we get a palindrome (73380608337).

The spelling of 12040304316 in words is "twelve billion, forty million, three hundred four thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 43624291 87248582 130872873 174497164 261745746 523491492 1003358693 2006717386 3010076079 4013434772 6020152158 12040304316