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12388634371 = 238925723549
BaseRepresentation
bin10111000100110101…
…11000111100000011
31011222101101211111001
423202122320330003
5200332442244441
65405151232431
7616000440361
oct134232707403
934871354431
1012388634371
115288074403
122498b18717
131225826aa9
148574a4631
154c793b731
hex2e26b8f03

12388634371 has 16 divisors (see below), whose sum is σ = 13123944000. Its totient is φ = 11670765568.

The previous prime is 12388634341. The next prime is 12388634389. The reversal of 12388634371 is 17343688321.

It is a happy number.

12388634371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12388634371 - 25 = 12388634339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12388634341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514305 + ... + 537853.

It is an arithmetic number, because the mean of its divisors is an integer number (820246500).

Almost surely, 212388634371 is an apocalyptic number.

12388634371 is a deficient number, since it is larger than the sum of its proper divisors (735309629).

12388634371 is a wasteful number, since it uses less digits than its factorization.

12388634371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23918.

The product of its digits is 580608, while the sum is 46.

The spelling of 12388634371 in words is "twelve billion, three hundred eighty-eight million, six hundred thirty-four thousand, three hundred seventy-one".

Divisors: 1 23 89 257 2047 5911 22873 23549 526079 541627 2095861 6052093 48204803 139198139 538636277 12388634371