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20002110020 = 2251000105501
BaseRepresentation
bin10010101000001101…
…111111101001000100
31220121222111110122122
4102220031333221010
5311431020010040
613104442345112
71305446062364
oct225015775104
956558443578
1020002110020
118534740342
123a627bb198
131b69c66179
14d7a6b49a4
157c10361b5
hex4a837fa44

20002110020 has 12 divisors (see below), whose sum is σ = 42004431084. Its totient is φ = 8000844000.

The previous prime is 20002110013. The next prime is 20002110031. The reversal of 20002110020 is 2001120002.

It can be written as a sum of positive squares in 2 ways, for example, as 4063552516 + 15938557504 = 63746^2 + 126248^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500052731 + ... + 500052770.

It is an arithmetic number, because the mean of its divisors is an integer number (3500369257).

Almost surely, 220002110020 is an apocalyptic number.

20002110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002110020 is an abundant number, since it is smaller than the sum of its proper divisors (22002321064).

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

20002110020 is a wasteful number, since it uses less digits than its factorization.

20002110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000105510 (or 1000105508 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20002110020 its reverse (2001120002), we get a palindrome (22003230022).

The spelling of 20002110020 in words is "twenty billion, two million, one hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 1000105501 2000211002 4000422004 5000527505 10001055010 20002110020