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20020200110020 = 225113737318233617
BaseRepresentation
bin1001000110101010100001…
…11010100111011111000100
32121212220122011112102020201
410203111100322213133010
510111002332212010040
6110325053012340244
74134261136101625
oct443252072473704
977786564472221
1020020200110020
116419579044740
1222b4070614684
13b22b87283a66
144d2da8d53a4c
1524ab8847da9a
hex123550ea77c4

20020200110020 has 192 divisors, whose sum is σ = 47269295732736. Its totient is φ = 7058496798720.

The previous prime is 20020200109961. The next prime is 20020200110083. The reversal of 20020200110020 is 2001100202002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20020200109979 and 20020200110006.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5535027252 + ... + 5535030868.

It is an arithmetic number, because the mean of its divisors is an integer number (246194248608).

Almost surely, 220020200110020 is an apocalyptic number.

20020200110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20020200110020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23634647866368).

20020200110020 is an abundant number, since it is smaller than the sum of its proper divisors (27249095622716).

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

20020200110020 is a wasteful number, since it uses less digits than its factorization.

20020200110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5870 (or 5868 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20020200110020 its reverse (2001100202002), we get a palindrome (22021300312022).

The spelling of 20020200110020 in words is "twenty trillion, twenty billion, two hundred million, one hundred ten thousand, twenty".