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12001808350 = 252734290881
BaseRepresentation
bin10110010110101110…
…10000111111011110
31010222102112000221101
423023113100333132
5144034430331400
65302532223314
7603262454620
oct131327207736
933872460841
1012001808350
1150a9787284
1223ab46ab3a
13119364895c
1481bd6cc10
154a39cb56a
hex2cb5d0fde

12001808350 has 24 divisors (see below), whose sum is σ = 25512416208. Its totient is φ = 4114905600.

The previous prime is 12001808347. The next prime is 12001808407. The reversal of 12001808350 is 5380810021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17145091 + ... + 17145790.

It is an arithmetic number, because the mean of its divisors is an integer number (1063017342).

Almost surely, 212001808350 is an apocalyptic number.

12001808350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12001808350 is an abundant number, since it is smaller than the sum of its proper divisors (13510607858).

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

12001808350 is a wasteful number, since it uses less digits than its factorization.

12001808350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34290900 (or 34290895 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The spelling of 12001808350 in words is "twelve billion, one million, eight hundred eight thousand, three hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 34290881 68581762 171454405 240036167 342908810 480072334 857272025 1200180835 1714544050 2400361670 6000904175 12001808350