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2020020121105 = 572917328140939
BaseRepresentation
bin11101011001010010100…
…101001110111000010001
321011010000200020101011221
4131121102211032320101
5231044000122333410
64143552345405041
7265640660504050
oct35312245167021
97133020211157
102020020121105
1170975a773118
122875b0799781
1311864416558c
146daab6d2397
153782a8c04da
hex1d65294ee11

2020020121105 has 64 divisors (see below), whose sum is σ = 2892735244800. Its totient is φ = 1324897781760.

The previous prime is 2020020121099. The next prime is 2020020121159. The reversal of 2020020121105 is 5011210200202.

It is a happy number.

It is not a de Polignac number, because 2020020121105 - 217 = 2020019990033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49321726 + ... + 49362664.

It is an arithmetic number, because the mean of its divisors is an integer number (45198988200).

Almost surely, 22020020121105 is an apocalyptic number.

It is an amenable number.

2020020121105 is a deficient number, since it is larger than the sum of its proper divisors (872715123695).

2020020121105 is a wasteful number, since it uses less digits than its factorization.

2020020121105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41434.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 2020020121105 its reverse (5011210200202), we get a palindrome (7031230321307).

The spelling of 2020020121105 in words is "two trillion, twenty billion, twenty million, one hundred twenty-one thousand, one hundred five".

Divisors: 1 5 7 29 35 145 173 203 281 865 1015 1211 1405 1967 5017 6055 8149 9835 25085 35119 40745 40939 48613 57043 175595 204695 243065 285215 286573 340291 1187231 1409777 1432865 1701455 5936155 7048885 7082447 8310617 9868439 11503859 35412235 41553085 49342195 49577129 57519295 80527013 205390963 247885645 333611911 402635065 1026954815 1437736741 1668059555 1990167607 2335283377 7188683705 9950838035 11676416885 13931173249 57714860603 69655866245 288574303015 404004024221 2020020121105