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20220971024 = 242694698181
BaseRepresentation
bin10010110101010000…
…111000100000010000
31221012020022202111202
4102311100320200100
5312403032033044
613142301330332
71314044263202
oct226520704020
957166282452
1020220971024
118637235901
123b03b669a8
131ba33c5317
14d9b7a6772
157d5368c4e
hex4b5438810

20220971024 has 20 divisors (see below), whose sum is σ = 39323783340. Its totient is φ = 10072897920.

The previous prime is 20220971003. The next prime is 20220971033. The reversal of 20220971024 is 42017902202.

It can be written as a sum of positive squares in 2 ways, for example, as 3329290000 + 16891681024 = 57700^2 + 129968^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2344787 + ... + 2353394.

It is an arithmetic number, because the mean of its divisors is an integer number (1966189167).

Almost surely, 220220971024 is an apocalyptic number.

It is an amenable number.

20220971024 is a deficient number, since it is larger than the sum of its proper divisors (19102812316).

20220971024 is a wasteful number, since it uses less digits than its factorization.

20220971024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4698458 (or 4698452 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The spelling of 20220971024 in words is "twenty billion, two hundred twenty million, nine hundred seventy-one thousand, twenty-four".

Divisors: 1 2 4 8 16 269 538 1076 2152 4304 4698181 9396362 18792724 37585448 75170896 1263810689 2527621378 5055242756 10110485512 20220971024