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2305030313 = 8931781701
BaseRepresentation
bin1000100101100011…
…1111100010101001
312221122022200011002
42021120333202221
514210041432223
61020420444345
7111056301665
oct21130774251
95848280132
102305030313
11a83147433
12543b496b5
132a9716981
1417c1bb8a5
15d7566e28
hex8963f8a9

2305030313 has 8 divisors (see below), whose sum is σ = 2338311240. Its totient is φ = 2271913600.

The previous prime is 2305030309. The next prime is 2305030379. The reversal of 2305030313 is 3130305032.

2305030313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 218093824 + 2086936489 = 14768^2 + 45683^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2305030313 - 22 = 2305030309 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2305030393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12638 + ... + 69063.

It is an arithmetic number, because the mean of its divisors is an integer number (292288905).

Almost surely, 22305030313 is an apocalyptic number.

It is an amenable number.

2305030313 is a deficient number, since it is larger than the sum of its proper divisors (33280927).

2305030313 is an equidigital number, since it uses as much as digits as its factorization.

2305030313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82107.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 2305030313 is about 48010.7312275079. The cubic root of 2305030313 is about 1320.9677462931.

Adding to 2305030313 its reverse (3130305032), we get a palindrome (5435335345).

The spelling of 2305030313 in words is "two billion, three hundred five million, thirty thousand, three hundred thirteen".

Divisors: 1 89 317 28213 81701 7271389 25899217 2305030313