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20422025020 = 2254703217117
BaseRepresentation
bin10011000001001111…
…110101111100111100
31221201020122100202001
4103001033311330330
5313311014300040
613214242512044
71322035230355
oct230117657474
957636570661
1020422025020
11872a778731
123b5b365624
131c05c5b297
14dba380d2c
157e7d3059a
hex4c13f5f3c

20422025020 has 24 divisors (see below), whose sum is σ = 42895569024. Its totient is φ = 8167035456.

The previous prime is 20422025017. The next prime is 20422025021. The reversal of 20422025020 is 2052022402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422025021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14499 + ... + 202618.

It is an arithmetic number, because the mean of its divisors is an integer number (1787315376).

Almost surely, 220422025020 is an apocalyptic number.

20422025020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20422025020 is an abundant number, since it is smaller than the sum of its proper divisors (22473544004).

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

20422025020 is a wasteful number, since it uses less digits than its factorization.

20422025020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221829 (or 221827 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

Adding to 20422025020 its reverse (2052022402), we get a palindrome (22474047422).

The spelling of 20422025020 in words is "twenty billion, four hundred twenty-two million, twenty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 4703 9406 18812 23515 47030 94060 217117 434234 868468 1085585 2171170 4342340 1021101251 2042202502 4084405004 5105506255 10211012510 20422025020