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12445201 = 103112071
BaseRepresentation
bin101111011110…
…011000010001
3212102021121101
4233132120101
511141221301
61122424401
7210532246
oct57363021
925367541
1012445201
11703029a
124202101
132769832
14191d5cd
15115c701
hexbde611

12445201 has 4 divisors (see below), whose sum is σ = 12458304. Its totient is φ = 12432100.

The previous prime is 12445187. The next prime is 12445249. The reversal of 12445201 is 10254421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12445201 - 211 = 12443153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12445501) 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, 5005 + ... + 7066.

It is an arithmetic number, because the mean of its divisors is an integer number (3114576).

Almost surely, 212445201 is an apocalyptic number.

It is an amenable number.

12445201 is a deficient number, since it is larger than the sum of its proper divisors (13103).

12445201 is a wasteful number, since it uses less digits than its factorization.

12445201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13102.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 12445201 is about 3527.7756447938. The cubic root of 12445201 is about 231.7398056483.

Adding to 12445201 its reverse (10254421), we get a palindrome (22699622).

The spelling of 12445201 in words is "twelve million, four hundred forty-five thousand, two hundred one".

Divisors: 1 1031 12071 12445201