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2012203031200 = 2552311392292549
BaseRepresentation
bin11101010010000000101…
…001011001101010100000
321010100211220000001202121
4131102000221121222200
5230431442433444300
64140220542154024
7265243160362345
oct35220051315240
97110756001677
102012203031200
1170640917583a
12285b8a882914
131179997a4aab
146d56943c7cc
153751e4a581a
hex1d480a59aa0

2012203031200 has 288 divisors, whose sum is σ = 5131546560000. Its totient is φ = 769634611200.

The previous prime is 2012203031191. The next prime is 2012203031287. The reversal of 2012203031200 is 21303022102.

It is a super-2 number, since 2×20122030312002 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 789407526 + ... + 789410074.

It is an arithmetic number, because the mean of its divisors is an integer number (17817870000).

Almost surely, 22012203031200 is an apocalyptic number.

2012203031200 is a gapful number since it is divisible by the number (20) 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 2012203031200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2565773280000).

2012203031200 is an abundant number, since it is smaller than the sum of its proper divisors (3119343528800).

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

2012203031200 is a wasteful number, since it uses less digits than its factorization.

2012203031200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968 (or 2955 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 2012203031200 its reverse (21303022102), we get a palindrome (2033506053302).

The spelling of 2012203031200 in words is "two trillion, twelve billion, two hundred three million, thirty-one thousand, two hundred".