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20020120222 = 219526845269
BaseRepresentation
bin10010101001010010…
…101100101010011110
31220200020101111000011
4102221102230222132
5312000122321342
613110324353434
71306055133304
oct225122545236
956606344004
1020020120222
118543921703
123a6884587a
131b709009ab
14d7cc42274
157c28e2717
hex4a94aca9e

20020120222 has 8 divisors (see below), whose sum is σ = 31610716200. Its totient is φ = 9483214824.

The previous prime is 20020120177. The next prime is 20020120243. The reversal of 20020120222 is 22202102002.

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

It is a congruent number.

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, 263422597 + ... + 263422672.

It is an arithmetic number, because the mean of its divisors is an integer number (3951339525).

Almost surely, 220020120222 is an apocalyptic number.

20020120222 is a deficient number, since it is larger than the sum of its proper divisors (11590595978).

20020120222 is a wasteful number, since it uses less digits than its factorization.

20020120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526845290.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20020120222 its reverse (22202102002), we get a palindrome (42222222224).

The spelling of 20020120222 in words is "twenty billion, twenty million, one hundred twenty thousand, two hundred twenty-two".

Divisors: 1 2 19 38 526845269 1053690538 10010060111 20020120222