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213218870128000 = 275311291133371097
BaseRepresentation
bin110000011110101111100011…
…000000110110110110000000
31000221221112011122220002120221
4300132233203000312312000
5210421334221223044000
62033251221404312424
762624361240430522
oct6036574300666600
91027845148802527
10213218870128000
1161a35684645750
121bab72b4242714
1391c85b7831779
143a91bc3d39a12
15199b4a362e61a
hexc1ebe3036d80

213218870128000 has 1024 divisors, whose sum is σ = 605886354028800. Its totient is φ = 73910452224000.

The previous prime is 213218870127937. The next prime is 213218870128003. The reversal of 213218870128000 is 821078812312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213218870128003) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 194365423452 + ... + 194365424548.

Almost surely, 2213218870128000 is an apocalyptic number.

213218870128000 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 213218870128000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302943177014400).

213218870128000 is an abundant number, since it is smaller than the sum of its proper divisors (392667483900800).

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

213218870128000 is a wasteful number, since it uses less digits than its factorization.

213218870128000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616 (or 1594 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 43.

The spelling of 213218870128000 in words is "two hundred thirteen trillion, two hundred eighteen billion, eight hundred seventy million, one hundred twenty-eight thousand".