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12442400012000 = 25537487912467
BaseRepresentation
bin1011010100001111100011…
…0101010011011011100000
31122001111000020202020211002
42311003320311103123200
53112324013400341000
642243543141411132
72422635162040610
oct265037065233340
948044006666732
1012442400012000
113a67879485832
12148b506709aa8
136c340c3a170a
14310302db2a40
151689c6d7a8d5
hexb50f8d536e0

12442400012000 has 192 divisors, whose sum is σ = 35010039407616. Its totient is φ = 4257201369600.

The previous prime is 12442400011967. The next prime is 12442400012011. The reversal of 12442400012000 is 21000424421.

12442400012000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13179767 + ... + 14092233.

It is an arithmetic number, because the mean of its divisors is an integer number (182343955248).

Almost surely, 212442400012000 is an apocalyptic number.

12442400012000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12442400012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17505019703808).

12442400012000 is an abundant number, since it is smaller than the sum of its proper divisors (22567639395616).

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

12442400012000 is an equidigital number, since it uses as much as digits as its factorization.

12442400012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912986 (or 912968 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12442400012000 its reverse (21000424421), we get a palindrome (12463400436421).

The spelling of 12442400012000 in words is "twelve trillion, four hundred forty-two billion, four hundred million, twelve thousand".