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12211060 = 225610553
BaseRepresentation
bin101110100101…
…001101110100
3211222101102111
4232211031310
511111223220
61113420404
7205535521
oct56451564
924871374
1012211060
116990394
12410a704
1326b70a4
14189c148
15111315a
hexba5374

12211060 has 12 divisors (see below), whose sum is σ = 25643268. Its totient is φ = 4884416.

The previous prime is 12211057. The next prime is 12211061. The reversal of 12211060 is 6011221.

It can be written as a sum of positive squares in 2 ways, for example, as 1281424 + 10929636 = 1132^2 + 3306^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12211060.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211061) 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 3 ways as a sum of consecutive naturals, for example, 305257 + ... + 305296.

It is an arithmetic number, because the mean of its divisors is an integer number (2136939).

Almost surely, 212211060 is an apocalyptic number.

12211060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211060 is an abundant number, since it is smaller than the sum of its proper divisors (13432208).

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

12211060 is a wasteful number, since it uses less digits than its factorization.

12211060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610562 (or 610560 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 12211060 is about 3494.4327150483. The cubic root of 12211060 is about 230.2772962971.

Adding to 12211060 its reverse (6011221), we get a palindrome (18222281).

The spelling of 12211060 in words is "twelve million, two hundred eleven thousand, sixty".

Divisors: 1 2 4 5 10 20 610553 1221106 2442212 3052765 6105530 12211060