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12743201 = 31411071
BaseRepresentation
bin110000100111…
…001000100001
3212222102101102
4300213020201
511230240301
61133044145
7213213122
oct60471041
925872342
1012743201
117214179
124326655
132842373
14199a049
1511bab6b
hexc27221

12743201 has 4 divisors (see below), whose sum is σ = 13154304. Its totient is φ = 12332100.

The previous prime is 12743197. The next prime is 12743221. The reversal of 12743201 is 10234721.

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 12743201 - 22 = 12743197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12743221) 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, 205505 + ... + 205566.

It is an arithmetic number, because the mean of its divisors is an integer number (3288576).

Almost surely, 212743201 is an apocalyptic number.

It is an amenable number.

12743201 is a deficient number, since it is larger than the sum of its proper divisors (411103).

12743201 is an equidigital number, since it uses as much as digits as its factorization.

12743201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411102.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12743201 is about 3569.7620368871. The cubic root of 12743201 is about 233.5749033310.

Adding to 12743201 its reverse (10234721), we get a palindrome (22977922).

The spelling of 12743201 in words is "twelve million, seven hundred forty-three thousand, two hundred one".

Divisors: 1 31 411071 12743201