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20201102202 = 2319717090611
BaseRepresentation
bin10010110100000101…
…000101101101111010
31221010211221022121110
4102310011011231322
5312332440232302
613140311421150
71313413351461
oct226405055572
957124838543
1020201102202
118626aa5096
123ab93847b6
131b9c259818
14d98cb39d8
157d3741b6c
hex4b4145b7a

20201102202 has 16 divisors (see below), whose sum is σ = 40607294112. Its totient is φ = 6699519120.

The previous prime is 20201102179. The next prime is 20201102209. The reversal of 20201102202 is 20220110202.

It is not an unprimeable number, because it can be changed into a prime (20201102209) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8544124 + ... + 8546487.

It is an arithmetic number, because the mean of its divisors is an integer number (2537955882).

Almost surely, 220201102202 is an apocalyptic number.

20201102202 is an abundant number, since it is smaller than the sum of its proper divisors (20406191910).

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

20201102202 is a wasteful number, since it uses less digits than its factorization.

20201102202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17090813.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20201102202 its reverse (20220110202), we get a palindrome (40421212404).

The spelling of 20201102202 in words is "twenty billion, two hundred one million, one hundred two thousand, two hundred two".

Divisors: 1 2 3 6 197 394 591 1182 17090611 34181222 51271833 102543666 3366850367 6733700734 10100551101 20201102202