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12242503 = 721319219
BaseRepresentation
bin101110101100…
…111001000111
3212000222120001
4232230321013
511113230003
61114222131
7206026300
oct56547107
925028501
1012242503
116a01a79
124124947
1326c84b0
1418a97a7
15111c61d
hexbace47

12242503 has 12 divisors (see below), whose sum is σ = 15337560. Its totient is φ = 9685872.

The previous prime is 12242501. The next prime is 12242521. The reversal of 12242503 is 30524221.

It is not a de Polignac number, because 12242503 - 21 = 12242501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12242501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8973 + ... + 10246.

It is an arithmetic number, because the mean of its divisors is an integer number (1278130).

Almost surely, 212242503 is an apocalyptic number.

12242503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12242503 is a deficient number, since it is larger than the sum of its proper divisors (3095057).

12242503 is a wasteful number, since it uses less digits than its factorization.

12242503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19246 (or 19239 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12242503 is about 3498.9288360868. The cubic root of 12242503 is about 230.4747785561.

Adding to 12242503 its reverse (30524221), we get a palindrome (42766724).

The spelling of 12242503 in words is "twelve million, two hundred forty-two thousand, five hundred three".

Divisors: 1 7 13 49 91 637 19219 134533 249847 941731 1748929 12242503