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12201252 = 2237145253
BaseRepresentation
bin101110100010…
…110100100100
3211221212222020
4232202310210
511110420002
61113303140
7205465110
oct56426444
924855866
1012201252
116983a88
124104ab0
1326b279b
141898740
1511102bc
hexba2d24

12201252 has 24 divisors (see below), whose sum is σ = 32536896. Its totient is φ = 3486048.

The previous prime is 12201251. The next prime is 12201263. The reversal of 12201252 is 25210221.

It is not an unprimeable number, because it can be changed into a prime (12201251) 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, 72543 + ... + 72710.

It is an arithmetic number, because the mean of its divisors is an integer number (1355704).

Almost surely, 212201252 is an apocalyptic number.

12201252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12201252 is an abundant number, since it is smaller than the sum of its proper divisors (20335644).

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

12201252 is a wasteful number, since it uses less digits than its factorization.

12201252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145267 (or 145265 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 12201252 is about 3493.0290579954. The cubic root of 12201252 is about 230.2156263932.

Adding to 12201252 its reverse (25210221), we get a palindrome (37411473).

The spelling of 12201252 in words is "twelve million, two hundred one thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 145253 290506 435759 581012 871518 1016771 1743036 2033542 3050313 4067084 6100626 12201252