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12223630 = 253973079
BaseRepresentation
bin101110101000…
…010010001110
3212000000200001
4232220102032
511112124010
61113554514
7205620256
oct56502216
925000601
1012223630
116999881
124115a3a
1326bca23
1418a2966
151116c3a
hexba848e

12223630 has 16 divisors (see below), whose sum is σ = 22065120. Its totient is φ = 4875552.

The previous prime is 12223621. The next prime is 12223633. The reversal of 12223630 is 3632221.

It is a junction number, because it is equal to n+sod(n) for n = 12223598 and 12223607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2431 + ... + 5509.

It is an arithmetic number, because the mean of its divisors is an integer number (1379070).

Almost surely, 212223630 is an apocalyptic number.

12223630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12223630 is a deficient number, since it is larger than the sum of its proper divisors (9841490).

12223630 is a wasteful number, since it uses less digits than its factorization.

12223630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 12223630 is about 3496.2308276199. The cubic root of 12223630 is about 230.3562846065.

Adding to 12223630 its reverse (3632221), we get a palindrome (15855851).

The spelling of 12223630 in words is "twelve million, two hundred twenty-three thousand, six hundred thirty".

Divisors: 1 2 5 10 397 794 1985 3079 3970 6158 15395 30790 1222363 2444726 6111815 12223630