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20302422222 = 2319439674283
BaseRepresentation
bin10010111010000111…
…100110000011001110
31221101220120220112210
4102322013212003032
5313034410002342
613154331211250
71316053512225
oct227207460316
957356526483
1020302422222
118679208345
123b272a6b26
131bb72430b4
14da8529cbc
157dc5a779c
hex4ba1e60ce

20302422222 has 64 divisors (see below), whose sum is σ = 43791390720. Its totient is φ = 6254254944.

The previous prime is 20302422199. The next prime is 20302422233. The reversal of 20302422222 is 22222420302.

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 31 ways as a sum of consecutive naturals, for example, 4738093 + ... + 4742375.

It is an arithmetic number, because the mean of its divisors is an integer number (684240480).

Almost surely, 220302422222 is an apocalyptic number.

20302422222 is an abundant number, since it is smaller than the sum of its proper divisors (23488968498).

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

20302422222 is a wasteful number, since it uses less digits than its factorization.

20302422222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5317.

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 20302422222 its reverse (22222420302), we get a palindrome (42524842524).

The spelling of 20302422222 in words is "twenty billion, three hundred two million, four hundred twenty-two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 19 38 43 57 86 114 129 258 817 967 1634 1934 2451 2901 4283 4902 5802 8566 12849 18373 25698 36746 41581 55119 81377 83162 110238 124743 162754 184169 244131 249486 368338 488262 552507 790039 1105014 1580078 2370117 3499211 4141661 4740234 6998422 8283322 10497633 12424983 20995266 24849966 78691559 157383118 178091423 236074677 356182846 472149354 534274269 1068548538 3383737037 6767474074 10151211111 20302422222