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20330444300 = 2252383557953
BaseRepresentation
bin10010111011110010…
…011111011000001100
31221110212022120121112
4102323302133120030
5313114043204200
613201211551152
71316543632235
oct227362373014
957425276545
1020330444300
118693007791
123b3475b4b8
131bbcca49ca
14dac14208c
157dec90535
hex4bbc9f60c

20330444300 has 72 divisors (see below), whose sum is σ = 44358160896. Its totient is φ = 8087887360.

The previous prime is 20330444269. The next prime is 20330444311. The reversal of 20330444300 is 344403302.

It is a happy 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 23 ways as a sum of consecutive naturals, for example, 21332624 + ... + 21333576.

It is an arithmetic number, because the mean of its divisors is an integer number (616085568).

Almost surely, 220330444300 is an apocalyptic number.

20330444300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20330444300 is an abundant number, since it is smaller than the sum of its proper divisors (24027716596).

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

20330444300 is a wasteful number, since it uses less digits than its factorization.

20330444300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907 (or 1900 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20330444300 its reverse (344403302), we get a palindrome (20674847602).

The spelling of 20330444300 in words is "twenty billion, three hundred thirty million, four hundred forty-four thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 383 557 766 953 1114 1532 1906 1915 2228 2785 3812 3830 4765 5570 7660 9530 9575 11140 13925 19060 19150 23825 27850 38300 47650 55700 95300 213331 364999 426662 530821 729998 853324 1061642 1066655 1459996 1824995 2123284 2133310 2654105 3649990 4266620 5308210 5333275 7299980 9124975 10616420 10666550 13270525 18249950 21333100 26541050 36499900 53082100 203304443 406608886 813217772 1016522215 2033044430 4066088860 5082611075 10165222150 20330444300