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12440201 = 431931499
BaseRepresentation
bin101111011101…
…001010001001
3212102000202012
4233131022021
511141041301
61122345305
7210511544
oct57351211
925360665
1012440201
117027564
1241bb235
132767487
14191b85b
15115aebb
hexbdd289

12440201 has 8 divisors (see below), whose sum is σ = 12804000. Its totient is φ = 12079872.

The previous prime is 12440191. The next prime is 12440203. The reversal of 12440201 is 10204421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12440201 - 26 = 12440137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12440203) 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 7 ways as a sum of consecutive naturals, for example, 7550 + ... + 9048.

It is an arithmetic number, because the mean of its divisors is an integer number (1600500).

Almost surely, 212440201 is an apocalyptic number.

It is an amenable number.

12440201 is a deficient number, since it is larger than the sum of its proper divisors (363799).

12440201 is a wasteful number, since it uses less digits than its factorization.

12440201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 12440201 is about 3527.0669117554. The cubic root of 12440201 is about 231.7087667969.

Adding to 12440201 its reverse (10204421), we get a palindrome (22644622).

The spelling of 12440201 in words is "twelve million, four hundred forty thousand, two hundred one".

Divisors: 1 43 193 1499 8299 64457 289307 12440201