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12178006090 = 25348972
BaseRepresentation
bin10110101011101110…
…11010000001001010
31011102201001210210121
423111313122001022
5144420032143330
65332224533454
7610532225635
oct132567320112
934381053717
1012178006090
11518a192248
12243a48128a
1311c0cbac83
14837516c1c
154b41d317a
hex2d5dda04a

12178006090 has 12 divisors (see below), whose sum is σ = 21921039126. Its totient is φ = 4871062848.

The previous prime is 12178006069. The next prime is 12178006103. The reversal of 12178006090 is 9060087121.

It is a happy number.

12178006090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2915676009 + 9262330081 = 53997^2 + 96241^2 .

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 5 ways as a sum of consecutive naturals, for example, 331522 + ... + 366418.

Almost surely, 212178006090 is an apocalyptic number.

12178006090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12178006090 is a deficient number, since it is larger than the sum of its proper divisors (9743033036).

12178006090 is an frugal number, since it uses more digits than its factorization.

12178006090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69801 (or 34904 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 12178006090 in words is "twelve billion, one hundred seventy-eight million, six thousand, ninety".

Divisors: 1 2 5 10 34897 69794 174485 348970 1217800609 2435601218 6089003045 12178006090