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12204490 = 2523471129
BaseRepresentation
bin101110100011…
…100111001010
3211222001102011
4232203213022
511111020430
61113330134
7205510414
oct56434712
924861364
1012204490
116986461
12410694a
1326b40bc
1418999b4
15111122a
hexba39ca

12204490 has 32 divisors (see below), whose sum is σ = 23431680. Its totient is φ = 4566144.

The previous prime is 12204463. The next prime is 12204497. The reversal of 12204490 is 9440221.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12204497) 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 15 ways as a sum of consecutive naturals, for example, 10246 + ... + 11374.

It is an arithmetic number, because the mean of its divisors is an integer number (732240).

Almost surely, 212204490 is an apocalyptic number.

12204490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12204490 is a deficient number, since it is larger than the sum of its proper divisors (11227190).

12204490 is a wasteful number, since it uses less digits than its factorization.

12204490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12204490 is about 3493.4925218182. The cubic root of 12204490 is about 230.2359896659.

The spelling of 12204490 in words is "twelve million, two hundred four thousand, four hundred ninety".

Divisors: 1 2 5 10 23 46 47 94 115 230 235 470 1081 1129 2162 2258 5405 5645 10810 11290 25967 51934 53063 106126 129835 259670 265315 530630 1220449 2440898 6102245 12204490