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20020202209 = 77140282097
BaseRepresentation
bin10010101001010011…
…000000101011100001
31220200020112122110201
4102221103000223201
5312000132432314
613110330225201
71306055624320
oct225123005341
956606478421
1020020202209
118543978267
123a68885201
131b7092c0c7
14d7cc640b7
157c290bb74
hex4a94c0ae1

20020202209 has 8 divisors (see below), whose sum is σ = 23202488448. Its totient is φ = 16918480320.

The previous prime is 20020202161. The next prime is 20020202221. The reversal of 20020202209 is 90220202002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20020202209 - 29 = 20020201697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020202249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20140552 + ... + 20141545.

It is an arithmetic number, because the mean of its divisors is an integer number (2900311056).

Almost surely, 220020202209 is an apocalyptic number.

It is an amenable number.

20020202209 is a deficient number, since it is larger than the sum of its proper divisors (3182286239).

20020202209 is an equidigital number, since it uses as much as digits as its factorization.

20020202209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40282175.

The product of its (nonzero) digits is 288, while the sum is 19.

The spelling of 20020202209 in words is "twenty billion, twenty million, two hundred two thousand, two hundred nine".

Divisors: 1 7 71 497 40282097 281974679 2860028887 20020202209