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1210200212 = 2213219591597
BaseRepresentation
bin100100000100010…
…0011000010010100
310010100012112121002
41020020203002110
54434302401322
6320030442432
741663350334
oct11010430224
93110175532
101210200212
11571143371
12299363418
13163956200
14b6a270c4
15713a2c92
hex48223094

1210200212 has 72 divisors (see below), whose sum is σ = 2456445600. Its totient is φ = 519861888.

The previous prime is 1210200203. The next prime is 1210200217. The reversal of 1210200212 is 2120020121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1210200193 and 1210200202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210200217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 756998 + ... + 758594.

It is an arithmetic number, because the mean of its divisors is an integer number (34117300).

Almost surely, 21210200212 is an apocalyptic number.

It is an amenable number.

1210200212 is an abundant number, since it is smaller than the sum of its proper divisors (1246245388).

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

1210200212 is a wasteful number, since it uses less digits than its factorization.

1210200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705 (or 1690 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1210200212 is about 34787.9319879754. The cubic root of 1210200212 is about 1065.6610066258.

Adding to 1210200212 its reverse (2120020121), we get a palindrome (3330220333).

The spelling of 1210200212 in words is "one billion, two hundred ten million, two hundred thousand, two hundred twelve".

Divisors: 1 2 4 13 19 26 38 52 59 76 118 169 236 247 338 494 676 767 988 1121 1534 1597 2242 3068 3194 3211 4484 6388 6422 9971 12844 14573 19942 20761 29146 30343 39884 41522 58292 60686 83044 94223 121372 188446 189449 269893 376892 378898 394459 539786 757796 788918 1079572 1224899 1577836 1790237 2449798 3580474 4899596 5127967 7160948 10255934 15923687 20511868 23273081 31847374 46546162 63694748 93092324 302550053 605100106 1210200212