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512205012000 = 253353112411789
BaseRepresentation
bin1110111010000011100…
…11000011110000100000
31210222002110002120012000
413131001303003300200
531342443440341000
61031145335004000
752001626523613
oct7350163036040
91728073076160
10512205012000
11188252415680
1283328509600
13393ba902c76
141ab1016a17a
15d4cc39d000
hex7741cc3c20

512205012000 has 768 divisors, whose sum is σ = 2043500659200. Its totient is φ = 123586560000.

The previous prime is 512205011957. The next prime is 512205012001. The reversal of 512205012000 is 210502215.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (512205012001) 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 127 ways as a sum of consecutive naturals, for example, 286307106 + ... + 286308894.

It is an arithmetic number, because the mean of its divisors is an integer number (2660808150).

Almost surely, 2512205012000 is an apocalyptic number.

512205012000 is a gapful number since it is divisible by the number (50) 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 512205012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1021750329600).

512205012000 is an abundant number, since it is smaller than the sum of its proper divisors (1531295647200).

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

512205012000 is a wasteful number, since it uses less digits than its factorization.

512205012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075 (or 2051 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

Adding to 512205012000 its reverse (210502215), we get a palindrome (512415514215).

The spelling of 512205012000 in words is "five hundred twelve billion, two hundred five million, twelve thousand".