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211222332230 = 25713367632459
BaseRepresentation
bin1100010010110111010…
…1010000001101000110
3202012012110002020012212
43010231311100031012
511430040404112410
6241011215343422
721155200125530
oct3045565201506
9665173066185
10211222332230
1181640555538
1234b29b21b72
1316bc231c950
14a31a708850
1557637ceb05
hex312dd50346

211222332230 has 64 divisors (see below), whose sum is σ = 469214484480. Its totient is φ = 66666132864.

The previous prime is 211222332229. The next prime is 211222332259. The reversal of 211222332230 is 32233222112.

It is a super-2 number, since 2×2112223322302 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211222332196 and 211222332205.

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, 17741 + ... + 650199.

It is an arithmetic number, because the mean of its divisors is an integer number (7331476320).

Almost surely, 2211222332230 is an apocalyptic number.

211222332230 is an abundant number, since it is smaller than the sum of its proper divisors (257992152250).

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

211222332230 is a wasteful number, since it uses less digits than its factorization.

211222332230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632853.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 211222332230 its reverse (32233222112), we get a palindrome (243455554342).

The spelling of 211222332230 in words is "two hundred eleven billion, two hundred twenty-two million, three hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 367 455 734 910 1835 2569 3670 4771 5138 9542 12845 23855 25690 33397 47710 66794 166985 333970 632459 1264918 3162295 4427213 6324590 8221967 8854426 16443934 22136065 41109835 44272130 57553769 82219670 115107538 232112453 287768845 464224906 575537690 1160562265 1624787171 2321124530 3017461889 3249574342 6034923778 8123935855 15087309445 16247871710 21122233223 30174618890 42244466446 105611166115 211222332230