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201012313 = 673298681
BaseRepresentation
bin10111111101100…
…11010001011001
3112000020111001111
423332303101121
5402424343223
631540220321
74660401505
oct1376632131
9460214044
10201012313
11a3514587
125739a6a1
133284ccc8
141c9a7305
15129a930d
hexbfb3459

201012313 has 4 divisors (see below), whose sum is σ = 201311668. Its totient is φ = 200712960.

The previous prime is 201012247. The next prime is 201012319. The reversal of 201012313 is 313210102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313210102 = 2156605051.

It can be written as a sum of positive squares in 2 ways, for example, as 70778569 + 130233744 = 8413^2 + 11412^2 .

It is a cyclic number.

It is not a de Polignac number, because 201012313 - 225 = 167457881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201012293 and 201012302.

It is not an unprimeable number, because it can be changed into a prime (201012319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148668 + ... + 150013.

It is an arithmetic number, because the mean of its divisors is an integer number (50327917).

Almost surely, 2201012313 is an apocalyptic number.

It is an amenable number.

201012313 is a deficient number, since it is larger than the sum of its proper divisors (299355).

201012313 is an equidigital number, since it uses as much as digits as its factorization.

201012313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299354.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 201012313 is about 14177.8811181361. The cubic root of 201012313 is about 585.7885613264.

Adding to 201012313 its reverse (313210102), we get a palindrome (514222415).

It can be divided in two parts, 2010 and 12313, that multiplied together give a triangular number (24749130 = T7035).

The spelling of 201012313 in words is "two hundred one million, twelve thousand, three hundred thirteen".

Divisors: 1 673 298681 201012313