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822013420220 = 225155777263843
BaseRepresentation
bin10111111011000111101…
…00010110001010111100
32220120202112021100112122
423331203310112022330
5101431440413421340
61425343332222112
7113250154533506
oct13754364261274
92816675240478
10822013420220
11297683167173
1211338a76a938
135c691819c05
142baddbdad76
15165b0bc1db5
hexbf63d162bc

822013420220 has 24 divisors (see below), whose sum is σ = 1726245806544. Its totient is φ = 328802011136.

The previous prime is 822013420213. The next prime is 822013420271. The reversal of 822013420220 is 22024310228.

It is a self number, because there is not a number n which added to its sum of digits gives 822013420220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2983619 + ... + 3247461.

It is an arithmetic number, because the mean of its divisors is an integer number (71926908606).

Almost surely, 2822013420220 is an apocalyptic number.

It is an amenable number.

822013420220 is an abundant number, since it is smaller than the sum of its proper divisors (904232386324).

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

822013420220 is a wasteful number, since it uses less digits than its factorization.

822013420220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419629 (or 419627 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 822013420220 its reverse (22024310228), we get a palindrome (844037730448).

The spelling of 822013420220 in words is "eight hundred twenty-two billion, thirteen million, four hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 155777 263843 311554 527686 623108 778885 1055372 1319215 1557770 2638430 3115540 5276860 41100671011 82201342022 164402684044 205503355055 411006710110 822013420220