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1530205220000 = 25541091275527
BaseRepresentation
bin10110010001000111010…
…101101010110010100000
312102021201122002022000102
4112101013111222302200
5200032330014020000
63130544440241532
7215360624522312
oct26210725526240
95367648068012
101530205220000
1153aa57a55226
122086927702a8
13b13b4172952
14540c30557b2
1529c0e00e3d5
hex1644756aca0

1530205220000 has 240 divisors, whose sum is σ = 3829678110720. Its totient is φ = 601582464000.

The previous prime is 1530205219999. The next prime is 1530205220077. The reversal of 1530205220000 is 225020351.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 276857237 + ... + 276862763.

It is an arithmetic number, because the mean of its divisors is an integer number (15956992128).

Almost surely, 21530205220000 is an apocalyptic number.

1530205220000 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 1530205220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1914839055360).

1530205220000 is an abundant number, since it is smaller than the sum of its proper divisors (2299472890720).

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

1530205220000 is a wasteful number, since it uses less digits than its factorization.

1530205220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5793 (or 5770 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The spelling of 1530205220000 in words is "one trillion, five hundred thirty billion, two hundred five million, two hundred twenty thousand".