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23220003213 = 3311270110139
BaseRepresentation
bin10101101000000001…
…010010000110001101
32012221020112101021000
4111220001102012031
5340023310100323
614400033130513
71451261525241
oct255001220615
965836471230
1023220003213
1199360a5100
1246003b9a39
13226082b194
1411a3bda421
1590d7bae43
hex56805218d

23220003213 has 48 divisors (see below), whose sum is σ = 37869249600. Its totient is φ = 14051268000.

The previous prime is 23220003173. The next prime is 23220003239. The reversal of 23220003213 is 31230002232.

It is a happy number.

It is not a de Polignac number, because 23220003213 - 28 = 23220002957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220043213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2285098 + ... + 2295236.

It is an arithmetic number, because the mean of its divisors is an integer number (788942700).

Almost surely, 223220003213 is an apocalyptic number.

It is an amenable number.

23220003213 is a deficient number, since it is larger than the sum of its proper divisors (14649246387).

23220003213 is a wasteful number, since it uses less digits than its factorization.

23220003213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10871 (or 10854 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 23220003213 its reverse (31230002232), we get a palindrome (54450005445).

The spelling of 23220003213 in words is "twenty-three billion, two hundred twenty million, three thousand, two hundred thirteen".

Divisors: 1 3 9 11 27 33 99 121 297 363 701 1089 2103 3267 6309 7711 10139 18927 23133 30417 69399 84821 91251 111529 208197 254463 273753 334587 763389 1003761 1226819 2290167 3011283 3680457 7107439 11041371 21322317 33124113 63966951 78181829 191900853 234545487 703636461 860000119 2110909383 2580000357 7740001071 23220003213