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20283222290 = 252388187923
BaseRepresentation
bin10010111000111110…
…010110100100010010
31221100120110110012012
4102320332112210102
5313020001103130
613152403502522
71315431354602
oct227076264422
957316413165
1020283222290
118669394131
123b20987a42
131bb327cba6
14da5b6cc02
157daa63995
hex4b8f96912

20283222290 has 16 divisors (see below), whose sum is σ = 38097183168. Its totient is φ = 7760537136.

The previous prime is 20283222263. The next prime is 20283222329. The reversal of 20283222290 is 9222238202.

It is a super-2 number, since 2×202832222902 (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 44093732 + ... + 44094191.

It is an arithmetic number, because the mean of its divisors is an integer number (2381073948).

Almost surely, 220283222290 is an apocalyptic number.

20283222290 is a deficient number, since it is larger than the sum of its proper divisors (17813960878).

20283222290 is a wasteful number, since it uses less digits than its factorization.

20283222290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88187953.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 20283222290 in words is "twenty billion, two hundred eighty-three million, two hundred twenty-two thousand, two hundred ninety".

Divisors: 1 2 5 10 23 46 115 230 88187923 176375846 440939615 881879230 2028322229 4056644458 10141611145 20283222290