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12013241 = 65318397
BaseRepresentation
bin101101110100…
…111010111001
3211121100001212
4231310322321
511033410431
61105252505
7204053012
oct55647271
924540055
1012013241
1168657a9
124034135
132648036
14184a009
1510c472b
hexb74eb9

12013241 has 4 divisors (see below), whose sum is σ = 12032292. Its totient is φ = 11994192.

The previous prime is 12013229. The next prime is 12013259. The reversal of 12013241 is 14231021.

Adding to 12013241 its reverse (14231021), we get a palindrome (26244262).

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7155625 + 4857616 = 2675^2 + 2204^2 .

It is a cyclic number.

It is not a de Polignac number, because 12013241 - 214 = 11996857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12013201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8546 + ... + 9851.

It is an arithmetic number, because the mean of its divisors is an integer number (3008073).

Almost surely, 212013241 is an apocalyptic number.

It is an amenable number.

12013241 is a deficient number, since it is larger than the sum of its proper divisors (19051).

12013241 is an equidigital number, since it uses as much as digits as its factorization.

12013241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19050.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12013241 is about 3466.0122619518. The cubic root of 12013241 is about 229.0270240096.

The spelling of 12013241 in words is "twelve million, thirteen thousand, two hundred forty-one".

Divisors: 1 653 18397 12013241