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20330222202 = 2321129456789
BaseRepresentation
bin10010111011110001…
…101001001001111010
31221110211220021221200
4102323301221021322
5313114014102302
613201203115030
71316542015563
oct227361511172
957424807850
1020330222202
118692975934
123b34672a76
131bbcc278a4
14dac0c516a
157dec4981c
hex4bbc6927a

20330222202 has 12 divisors (see below), whose sum is σ = 44048814810. Its totient is φ = 6776740728.

The previous prime is 20330222201. The next prime is 20330222221. The reversal of 20330222202 is 20222203302.

It can be written as a sum of positive squares in only one way, i.e., 14513261841 + 5816960361 = 120471^2 + 76269^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1129456789 = 20330222202 / (2 + 0 + 3 + 3 + 0 + 2 + 2 + 2 + 2 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (20330222201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 564728377 + ... + 564728412.

Almost surely, 220330222202 is an apocalyptic number.

20330222202 is an abundant number, since it is smaller than the sum of its proper divisors (23718592608).

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

20330222202 is a wasteful number, since it uses less digits than its factorization.

20330222202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129456797 (or 1129456794 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 20330222202 its reverse (20222203302), we get a palindrome (40552425504).

The spelling of 20330222202 in words is "twenty billion, three hundred thirty million, two hundred twenty-two thousand, two hundred two".

Divisors: 1 2 3 6 9 18 1129456789 2258913578 3388370367 6776740734 10165111101 20330222202