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315214201 = 653482717
BaseRepresentation
bin10010110010011…
…100100101111001
3210222010112121001
4102302130211321
51121143323301
651140045001
710545163561
oct2262344571
9728115531
10315214201
11151a26105
1289693761
13503c6aa3
142dc13da1
151ca16c01
hex12c9c979

315214201 has 4 divisors (see below), whose sum is σ = 315697572. Its totient is φ = 314730832.

The previous prime is 315214183. The next prime is 315214247. The reversal of 315214201 is 102412513.

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 138297600 + 176916601 = 11760^2 + 13301^2 .

It is a cyclic number.

It is not a de Polignac number, because 315214201 - 213 = 315206009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315214261) 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, 240706 + ... + 242011.

It is an arithmetic number, because the mean of its divisors is an integer number (78924393).

Almost surely, 2315214201 is an apocalyptic number.

It is an amenable number.

315214201 is a deficient number, since it is larger than the sum of its proper divisors (483371).

315214201 is an equidigital number, since it uses as much as digits as its factorization.

315214201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483370.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 315214201 is about 17754.2727533403. The cubic root of 315214201 is about 680.5634034583.

Adding to 315214201 its reverse (102412513), we get a palindrome (417626714).

The spelling of 315214201 in words is "three hundred fifteen million, two hundred fourteen thousand, two hundred one".

Divisors: 1 653 482717 315214201