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2012120000 = 26541117269
BaseRepresentation
bin111011111101110…
…1000001111000000
312012020011021201222
41313323220033000
513110100320000
6531354414212
7100601511032
oct16773501700
95166137658
102012120000
119428755a0
12481a31368
13260b2bb67
14151331c52
15bb9a8a85
hex77ee83c0

2012120000 has 280 divisors, whose sum is σ = 5784585840. Its totient is φ = 686080000.

The previous prime is 2012119999. The next prime is 2012120009. The reversal of 2012120000 is 212102.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2012120000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012120009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7479866 + ... + 7480134.

Almost surely, 22012120000 is an apocalyptic number.

2012120000 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 2012120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2892292920).

2012120000 is an abundant number, since it is smaller than the sum of its proper divisors (3772465840).

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

2012120000 is a wasteful number, since it uses less digits than its factorization.

2012120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 2012120000 is about 44856.6605979536. The cubic root of 2012120000 is about 1262.4609666722.

Adding to 2012120000 its reverse (212102), we get a palindrome (2012332102).

The spelling of 2012120000 in words is "two billion, twelve million, one hundred twenty thousand".