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20321000300 = 2252534877873
BaseRepresentation
bin10010111011001110…
…011101101101101100
31221110012112202212202
4102323032131231230
5313104134002200
613200233321032
71316400436556
oct227316355554
957405482782
1020321000300
118688747327
123b31566178
131bbb049243
14daaba44d6
157de0271d5
hex4bb39db6c

20321000300 has 72 divisors (see below), whose sum is σ = 45026555616. Its totient is φ = 7957647360.

The previous prime is 20321000299. The next prime is 20321000363. The reversal of 20321000300 is 300012302.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2577164 + ... + 2585036.

It is an arithmetic number, because the mean of its divisors is an integer number (625368828).

Almost surely, 220321000300 is an apocalyptic number.

20321000300 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 20321000300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22513277808).

20321000300 is an abundant number, since it is smaller than the sum of its proper divisors (24705555316).

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

20321000300 is a wasteful number, since it uses less digits than its factorization.

20321000300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8427 (or 8420 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 20321000300 its reverse (300012302), we get a palindrome (20621012602).

The spelling of 20321000300 in words is "twenty billion, three hundred twenty-one million, three hundred", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 25 50 53 100 106 212 265 487 530 974 1060 1325 1948 2435 2650 4870 5300 7873 9740 12175 15746 24350 25811 31492 39365 48700 51622 78730 103244 129055 157460 196825 258110 393650 417269 516220 645275 787300 834538 1290550 1669076 2086345 2581100 3834151 4172690 7668302 8345380 10431725 15336604 19170755 20863450 38341510 41726900 76683020 95853775 191707550 203210003 383415100 406420006 812840012 1016050015 2032100030 4064200060 5080250075 10160500150 20321000300