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12180112242 = 232030018707
BaseRepresentation
bin10110101011111110…
…11100001101110010
31011102212000210220020
423111333130031302
5144421102042432
65332342024310
7610556150214
oct132577341562
934385023806
1012180112242
1151903a0671
12243b118096
1311c157780c
148379045b4
154b449c22c
hex2d5fdc372

12180112242 has 8 divisors (see below), whose sum is σ = 24360224496. Its totient is φ = 4060037412.

The previous prime is 12180112237. The next prime is 12180112249. The reversal of 12180112242 is 24221108121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

12180112242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12180112249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1015009348 + ... + 1015009359.

It is an arithmetic number, because the mean of its divisors is an integer number (3045028062).

Almost surely, 212180112242 is an apocalyptic number.

12180112242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12180112242 is a wasteful number, since it uses less digits than its factorization.

12180112242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030018712.

The product of its (nonzero) digits is 512, while the sum is 24.

The spelling of 12180112242 in words is "twelve billion, one hundred eighty million, one hundred twelve thousand, two hundred forty-two".

Divisors: 1 2 3 6 2030018707 4060037414 6090056121 12180112242