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99201900000 = 25355797487
BaseRepresentation
bin101110001100011100…
…1001101110111100000
3100111001112212122212110
41130120321031313200
53111131141300000
6113323412555320
710111213144230
oct1343071156740
9314045778773
1099201900000
1139086982825
1217286622b40
13947c373618
144b3106bcc0
1528a913a850
hex1718e4dde0

99201900000 has 576 divisors, whose sum is σ = 376589896704. Its totient is φ = 22394880000.

The previous prime is 99201899969. The next prime is 99201900059. The reversal of 99201900000 is 910299.

It is a super-2 number, since 2×992019000002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 203699757 + ... + 203700243.

It is an arithmetic number, because the mean of its divisors is an integer number (653801904).

Almost surely, 299201900000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99201900000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188294948352).

99201900000 is an abundant number, since it is smaller than the sum of its proper divisors (277387996704).

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

99201900000 is an equidigital number, since it uses as much as digits as its factorization.

99201900000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 601 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 30.

The spelling of 99201900000 in words is "ninety-nine billion, two hundred one million, nine hundred thousand".