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20200218222 = 2318181185177
BaseRepresentation
bin10010110100000001…
…101101111001101110
31221010210021102000110
4102310001231321232
5312332223440342
613140240440450
71313403010332
oct226401557156
957123242013
1020200218222
118626550a28
123ab9019126
131b9c00a362
14d98b237c2
157d3619c9c
hex4b406de6e

20200218222 has 16 divisors (see below), whose sum is σ = 40402876752. Its totient is φ = 6732999360.

The previous prime is 20200218217. The next prime is 20200218251. The reversal of 20200218222 is 22281200202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16498 + ... + 201674.

It is an arithmetic number, because the mean of its divisors is an integer number (2525179797).

Almost surely, 220200218222 is an apocalyptic number.

20200218222 is an abundant number, since it is smaller than the sum of its proper divisors (20202658530).

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

20200218222 is a wasteful number, since it uses less digits than its factorization.

20200218222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203363.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20200218222 its reverse (22281200202), we get a palindrome (42481418424).

The spelling of 20200218222 in words is "twenty billion, two hundred million, two hundred eighteen thousand, two hundred twenty-two".

Divisors: 1 2 3 6 18181 36362 54543 109086 185177 370354 555531 1111062 3366703037 6733406074 10100109111 20200218222