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20323202020 = 2251192378191
BaseRepresentation
bin10010111011010110…
…110111001111100100
31221110100200122001221
4102323112313033210
5313110214431040
613200352430124
71316425236562
oct227326671744
957410618057
1020323202020
118689a10530
123b32248344
131bbb63a434
14dab1b8a32
157de30e74a
hex4bb5b73e4

20323202020 has 24 divisors (see below), whose sum is σ = 46558608768. Its totient is φ = 7390255200.

The previous prime is 20323201967. The next prime is 20323202033. The reversal of 20323202020 is 2020232302.

It is a junction number, because it is equal to n+sod(n) for n = 20323201985 and 20323202003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46188876 + ... + 46189315.

It is an arithmetic number, because the mean of its divisors is an integer number (1939942032).

Almost surely, 220323202020 is an apocalyptic number.

20323202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20323202020 is an abundant number, since it is smaller than the sum of its proper divisors (26235406748).

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

20323202020 is a wasteful number, since it uses less digits than its factorization.

20323202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92378211 (or 92378209 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 20323202020 its reverse (2020232302), we get a palindrome (22343434322).

The spelling of 20323202020 in words is "twenty billion, three hundred twenty-three million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 92378191 184756382 369512764 461890955 923781910 1016160101 1847563820 2032320202 4064640404 5080800505 10161601010 20323202020