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12147180886 = 2122313733617
BaseRepresentation
bin10110101000000011…
…10100010101010110
31011100120001201120101
423110001310111112
5144334134242021
65325204124314
7610006222351
oct132401642526
934316051511
1012147180886
115173848875
12243009669a
1311b77b74c9
148333b1298
154b1644a91
hex2d4074556

12147180886 has 16 divisors (see below), whose sum is σ = 18253996704. Its totient is φ = 6062527744.

The previous prime is 12147180847. The next prime is 12147180907. The reversal of 12147180886 is 68808174121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3356550 + ... + 3360166.

It is an arithmetic number, because the mean of its divisors is an integer number (1140874794).

Almost surely, 212147180886 is an apocalyptic number.

12147180886 is a deficient number, since it is larger than the sum of its proper divisors (6106815818).

12147180886 is a wasteful number, since it uses less digits than its factorization.

12147180886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6215.

The product of its (nonzero) digits is 172032, while the sum is 46.

The spelling of 12147180886 in words is "twelve billion, one hundred forty-seven million, one hundred eighty thousand, eight hundred eighty-six".

Divisors: 1 2 1223 1373 2446 2746 3617 7234 1679179 3358358 4423591 4966141 8847182 9932282 6073590443 12147180886