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23000320313 = 73315072881
BaseRepresentation
bin10101011010111011…
…010000100100111001
32012100221011022222022
4111122323100210321
5334101040222223
614322144404225
71442653332305
oct253273204471
965327138868
1023000320313
119833099093
12455a916675
132227171bb9
141182972d05
158e9374ac8
hex55aed0939

23000320313 has 4 divisors (see below), whose sum is σ = 23315393268. Its totient is φ = 22685247360.

The previous prime is 23000320309. The next prime is 23000320331. The reversal of 23000320313 is 31302300032.

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 5223964729 + 17776355584 = 72277^2 + 133328^2 .

It is a cyclic number.

It is not a de Polignac number, because 23000320313 - 22 = 23000320309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23000320291 and 23000320300.

It is not an unprimeable number, because it can be changed into a prime (23000320303) 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, 157536368 + ... + 157536513.

It is an arithmetic number, because the mean of its divisors is an integer number (5828848317).

Almost surely, 223000320313 is an apocalyptic number.

It is an amenable number.

23000320313 is a deficient number, since it is larger than the sum of its proper divisors (315072955).

23000320313 is an equidigital number, since it uses as much as digits as its factorization.

23000320313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315072954.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 23000320313 its reverse (31302300032), we get a palindrome (54302620345).

The spelling of 23000320313 in words is "twenty-three billion, three hundred twenty thousand, three hundred thirteen".

Divisors: 1 73 315072881 23000320313