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12120202302 = 2313155387209
BaseRepresentation
bin10110100100110101…
…11001110000111110
31011021200022001220120
423102122321300332
5144310232433202
65322401555410
7606231006525
oct132232716076
934250261816
1012120202302
11515a5a141a
122423045b66
1311b202c850
1482d98b4bc
154ae0b60bc
hex2d26b9c3e

12120202302 has 16 divisors (see below), whose sum is σ = 26105051280. Its totient is φ = 3729292992.

The previous prime is 12120202271. The next prime is 12120202321. The reversal of 12120202302 is 20320202121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 77693527 + ... + 77693682.

It is an arithmetic number, because the mean of its divisors is an integer number (1631565705).

Almost surely, 212120202302 is an apocalyptic number.

12120202302 is an abundant number, since it is smaller than the sum of its proper divisors (13984848978).

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

12120202302 is a wasteful number, since it uses less digits than its factorization.

12120202302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155387227.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12120202302 its reverse (20320202121), we get a palindrome (32440404423).

The spelling of 12120202302 in words is "twelve billion, one hundred twenty million, two hundred two thousand, three hundred two".

Divisors: 1 2 3 6 13 26 39 78 155387209 310774418 466161627 932323254 2020033717 4040067434 6060101151 12120202302