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12227085 = 335136967
BaseRepresentation
bin101110101001…
…001000001101
3212000012102000
4232221020031
511112231320
61114022513
7205633323
oct56511015
925005360
1012227085
1169a1432
124117a39
1326c1480
1418a3d13
151117c90
hexba920d

12227085 has 32 divisors (see below), whose sum is σ = 23412480. Its totient is φ = 6018624.

The previous prime is 12227081. The next prime is 12227167. The reversal of 12227085 is 58072221.

It is not a de Polignac number, because 12227085 - 22 = 12227081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12227081) 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 31 ways as a sum of consecutive naturals, for example, 1729 + ... + 5238.

It is an arithmetic number, because the mean of its divisors is an integer number (731640).

Almost surely, 212227085 is an apocalyptic number.

12227085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12227085 is a deficient number, since it is larger than the sum of its proper divisors (11185395).

12227085 is a wasteful number, since it uses less digits than its factorization.

12227085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6994 (or 6988 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 12227085 is about 3496.7248962422. The cubic root of 12227085 is about 230.3779859067.

The spelling of 12227085 in words is "twelve million, two hundred twenty-seven thousand, eighty-five".

Divisors: 1 3 5 9 13 15 27 39 45 65 117 135 195 351 585 1755 6967 20901 34835 62703 90571 104505 188109 271713 313515 452855 815139 940545 1358565 2445417 4075695 12227085