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12210242 = 2111992789
BaseRepresentation
bin101110100101…
…000001000010
3211222100022012
4232211001002
511111211432
61113412522
7205533242
oct56450102
924870265
1012210242
11698a810
12410a142
1326b68c5
14189bb22
151112cb2
hexba5042

12210242 has 16 divisors (see below), whose sum is σ = 20088000. Its totient is φ = 5520240.

The previous prime is 12210241. The next prime is 12210269. The reversal of 12210242 is 24201221.

It is not an unprimeable number, because it can be changed into a prime (12210241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2984 + ... + 5772.

It is an arithmetic number, because the mean of its divisors is an integer number (1255500).

Almost surely, 212210242 is an apocalyptic number.

12210242 is a deficient number, since it is larger than the sum of its proper divisors (7877758).

12210242 is a wasteful number, since it uses less digits than its factorization.

12210242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 12210242 is about 3494.3156697700. The cubic root of 12210242 is about 230.2721542091.

Adding to 12210242 its reverse (24201221), we get a palindrome (36411463).

The spelling of 12210242 in words is "twelve million, two hundred ten thousand, two hundred forty-two".

Divisors: 1 2 11 22 199 398 2189 2789 4378 5578 30679 61358 555011 1110022 6105121 12210242