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20302330020 = 2235748338881
BaseRepresentation
bin10010111010000111…
…001111100010100100
31221101220102020001220
4102322013033202210
5313034344030040
613154325220340
71316052646350
oct227207174244
957356366056
1020302330020
118679155045
123b272616b0
131bb721013b
14da8504460
157dc58a2d0
hex4ba1cf8a4

20302330020 has 48 divisors (see below), whose sum is σ = 64967457408. Its totient is φ = 4640532480.

The previous prime is 20302330007. The next prime is 20302330039. The reversal of 20302330020 is 2003320302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 24169021 + ... + 24169860.

It is an arithmetic number, because the mean of its divisors is an integer number (1353488696).

Almost surely, 220302330020 is an apocalyptic number.

20302330020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302330020 is an abundant number, since it is smaller than the sum of its proper divisors (44665127388).

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

20302330020 is a wasteful number, since it uses less digits than its factorization.

20302330020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48338900 (or 48338898 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

Adding to 20302330020 its reverse (2003320302), we get a palindrome (22305650322).

The spelling of 20302330020 in words is "twenty billion, three hundred two million, three hundred thirty thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 48338881 96677762 145016643 193355524 241694405 290033286 338372167 483388810 580066572 676744334 725083215 966777620 1015116501 1353488668 1450166430 1691860835 2030233002 2900332860 3383721670 4060466004 5075582505 6767443340 10151165010 20302330020