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22230332220 = 22352912776053
BaseRepresentation
bin10100101101000001…
…111111001100111100
32010101021021212212210
4110231001333030330
5331011431112340
614113521100420
71414613464125
oct245501771474
963337255783
1022230332220
119478496698
124384a87710
132133799545
14110c5bb04c
158a197a180
hex52d07f33c

22230332220 has 48 divisors (see below), whose sum is σ = 64391312160. Its totient is φ = 5723671296.

The previous prime is 22230332219. The next prime is 22230332237. The reversal of 22230332220 is 2223303222.

It is a super-2 number, since 2×222303322202 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6386287 + ... + 6389766.

It is an arithmetic number, because the mean of its divisors is an integer number (1341485670).

Almost surely, 222230332220 is an apocalyptic number.

22230332220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22230332220 is an abundant number, since it is smaller than the sum of its proper divisors (42160979940).

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

22230332220 is a wasteful number, since it uses less digits than its factorization.

22230332220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12776094 (or 12776092 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

Adding to 22230332220 its reverse (2223303222), we get a palindrome (24453635442).

The spelling of 22230332220 in words is "twenty-two billion, two hundred thirty million, three hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 29 30 58 60 87 116 145 174 290 348 435 580 870 1740 12776053 25552106 38328159 51104212 63880265 76656318 127760530 153312636 191640795 255521060 370505537 383281590 741011074 766563180 1111516611 1482022148 1852527685 2223033222 3705055370 4446066444 5557583055 7410110740 11115166110 22230332220