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20324949700 = 22521118477227
BaseRepresentation
bin10010111011011101…
…100001111011000100
31221110110222102102211
4102323131201323010
5313111141342300
613200454113204
71316446136056
oct227335417304
957413872384
1020324949700
11868a9a45a0
123b3294b804
131bbbacca73
14dab5118d6
157de5574ba
hex4bb761ec4

20324949700 has 36 divisors (see below), whose sum is σ = 48114701712. Its totient is φ = 7390890400.

The previous prime is 20324949683. The next prime is 20324949703. The reversal of 20324949700 is 794942302.

It is not an unprimeable number, because it can be changed into a prime (20324949703) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9237514 + ... + 9239713.

It is an arithmetic number, because the mean of its divisors is an integer number (1336519492).

Almost surely, 220324949700 is an apocalyptic number.

20324949700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20324949700 is an abundant number, since it is smaller than the sum of its proper divisors (27789752012).

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

20324949700 is a wasteful number, since it uses less digits than its factorization.

20324949700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18477252 (or 18477245 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 20324949700 in words is "twenty billion, three hundred twenty-four million, nine hundred forty-nine thousand, seven hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 18477227 36954454 73908908 92386135 184772270 203249497 369544540 406498994 461930675 812997988 923861350 1016247485 1847722700 2032494970 4064989940 5081237425 10162474850 20324949700