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12739201 = 17373637
BaseRepresentation
bin110000100110…
…001010000001
3212222012220021
4300212022001
511230123301
61133013441
7213165346
oct60461201
925865807
1012739201
117211172
124324281
1328405b7
1419987cd
1511b98a1
hexc26281

12739201 has 4 divisors (see below), whose sum is σ = 12813012. Its totient is φ = 12665392.

The previous prime is 12739189. The next prime is 12739229. The reversal of 12739201 is 10293721.

12739201 = T294 + T295 + ... + T466.

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 12215025 + 524176 = 3495^2 + 724^2 .

It is a cyclic number.

It is not a de Polignac number, because 12739201 - 219 = 12214913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12739271) 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, 36646 + ... + 36991.

It is an arithmetic number, because the mean of its divisors is an integer number (3203253).

Almost surely, 212739201 is an apocalyptic number.

It is an amenable number.

12739201 is a deficient number, since it is larger than the sum of its proper divisors (73811).

12739201 is an equidigital number, since it uses as much as digits as its factorization.

12739201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73810.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 12739201 is about 3569.2017314800. The cubic root of 12739201 is about 233.5504616075.

The spelling of 12739201 in words is "twelve million, seven hundred thirty-nine thousand, two hundred one".

Divisors: 1 173 73637 12739201