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12132302320 = 245151653779
BaseRepresentation
bin10110100110010010…
…00011110111110000
31011022112001211000101
423103021003313300
5144321332133240
65323513202144
7606435603535
oct132311036760
934275054011
1012132302320
115166406336
122427100354
1311b46a8218
1483141ad8c
154b01a639a
hex2d3243df0

12132302320 has 20 divisors (see below), whose sum is σ = 28207603080. Its totient is φ = 4852920896.

The previous prime is 12132302317. The next prime is 12132302353. The reversal of 12132302320 is 2320323121.

12132302320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 75826810 + ... + 75826969.

It is an arithmetic number, because the mean of its divisors is an integer number (1410380154).

Almost surely, 212132302320 is an apocalyptic number.

12132302320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12132302320 is an abundant number, since it is smaller than the sum of its proper divisors (16075300760).

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

12132302320 is a wasteful number, since it uses less digits than its factorization.

12132302320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151653792 (or 151653786 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12132302320 its reverse (2320323121), we get a palindrome (14452625441).

The spelling of 12132302320 in words is "twelve billion, one hundred thirty-two million, three hundred two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 151653779 303307558 606615116 758268895 1213230232 1516537790 2426460464 3033075580 6066151160 12132302320