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12285122890 = 2510631155703
BaseRepresentation
bin10110111000100000…
…00001100101001010
31011201011121220102111
423130100001211022
5200124442413030
65351012452534
7613302551545
oct133420014512
934634556374
1012285122890
1152346a4727
12246a31a14a
13120a253bb1
1484783b85c
154bd7e162a
hex2dc40194a

12285122890 has 16 divisors (see below), whose sum is σ = 22134043008. Its totient is φ = 4909422096.

The previous prime is 12285122873. The next prime is 12285122929. The reversal of 12285122890 is 9822158221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567222 + ... + 588481.

It is an arithmetic number, because the mean of its divisors is an integer number (1383377688).

Almost surely, 212285122890 is an apocalyptic number.

12285122890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12285122890 is a deficient number, since it is larger than the sum of its proper divisors (9848920118).

12285122890 is a wasteful number, since it uses less digits than its factorization.

12285122890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156773.

The product of its (nonzero) digits is 46080, while the sum is 40.

The spelling of 12285122890 in words is "twelve billion, two hundred eighty-five million, one hundred twenty-two thousand, eight hundred ninety".

Divisors: 1 2 5 10 1063 2126 5315 10630 1155703 2311406 5778515 11557030 1228512289 2457024578 6142561445 12285122890