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20373110020 = 2251018655501
BaseRepresentation
bin10010111110010101…
…001111110100000100
31221120211121012222101
4102332111033310010
5313211004010040
613205334241444
71320602402134
oct227625176404
957524535871
1020373110020
1187050a910a
123b46ab6284
131bc8a929b3
14db3a8aac4
157e38bc09a
hex4be54fd04

20373110020 has 12 divisors (see below), whose sum is σ = 42783531084. Its totient is φ = 8149244000.

The previous prime is 20373110011. The next prime is 20373110033. The reversal of 20373110020 is 2001137302.

It can be written as a sum of positive squares in 2 ways, for example, as 4445155584 + 15927954436 = 66672^2 + 126206^2 .

It is a super-2 number, since 2×203731100202 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20373110020.

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, 509327731 + ... + 509327770.

It is an arithmetic number, because the mean of its divisors is an integer number (3565294257).

Almost surely, 220373110020 is an apocalyptic number.

20373110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20373110020 is an abundant number, since it is smaller than the sum of its proper divisors (22410421064).

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

20373110020 is a wasteful number, since it uses less digits than its factorization.

20373110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018655510 (or 1018655508 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

Adding to 20373110020 its reverse (2001137302), we get a palindrome (22374247322).

The spelling of 20373110020 in words is "twenty billion, three hundred seventy-three million, one hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 1018655501 2037311002 4074622004 5093277505 10186555010 20373110020