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20202856522 = 21913710913557
BaseRepresentation
bin10010110100001011…
…110010000001001010
31221010222020110002021
4102310023302001022
5312333412402042
613140413155054
71313434306222
oct226413620112
957128213067
1020202856522
118627a93142
123ab9a8ba8a
131b9c722194
14d9920d082
157d398b867
hex4b42f204a

20202856522 has 32 divisors (see below), whose sum is σ = 32170582080. Its totient is φ = 9488545920.

The previous prime is 20202856511. The next prime is 20202856529. The reversal of 20202856522 is 22565820202.

It is not an unprimeable number, because it can be changed into a prime (20202856529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5677968 + ... + 5681524.

It is an arithmetic number, because the mean of its divisors is an integer number (1005330690).

Almost surely, 220202856522 is an apocalyptic number.

20202856522 is a deficient number, since it is larger than the sum of its proper divisors (11967725558).

20202856522 is a wasteful number, since it uses less digits than its factorization.

20202856522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806.

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 20202856522 in words is "twenty billion, two hundred two million, eight hundred fifty-six thousand, five hundred twenty-two".

Divisors: 1 2 19 38 137 274 1091 2182 2603 3557 5206 7114 20729 41458 67583 135166 149467 298934 487309 974618 2839873 3880687 5679746 7761374 9258871 18517742 73733053 147466106 531654119 1063308238 10101428261 20202856522