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12127447288 = 2311271508531
BaseRepresentation
bin10110100101101101…
…00010100011111000
31011022011221011011101
423102312202203320
5144314111303123
65323221141144
7606346413115
oct132266424370
934264834141
1012127447288
11516369a710
12242555a7b4
1311b3698418
1483091590c
154aea47aad
hex2d2da28f8

12127447288 has 32 divisors (see below), whose sum is σ = 24897726720. Its totient is φ = 5492124000.

The previous prime is 12127447261. The next prime is 12127447313. The reversal of 12127447288 is 88274472121.

12127447288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 230418 + ... + 278113.

It is an arithmetic number, because the mean of its divisors is an integer number (778053960).

Almost surely, 212127447288 is an apocalyptic number.

It is an amenable number.

12127447288 is an abundant number, since it is smaller than the sum of its proper divisors (12770279432).

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

12127447288 is a wasteful number, since it uses less digits than its factorization.

12127447288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508819 (or 508815 counting only the distinct ones).

The product of its digits is 401408, while the sum is 46.

The spelling of 12127447288 in words is "twelve billion, one hundred twenty-seven million, four hundred forty-seven thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 11 22 44 88 271 542 1084 2168 2981 5962 11924 23848 508531 1017062 2034124 4068248 5593841 11187682 22375364 44750728 137811901 275623802 551247604 1102495208 1515930911 3031861822 6063723644 12127447288