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2313203213 = 3075775209
BaseRepresentation
bin1000100111100000…
…1010111000001101
312222012200220021002
42021320022320031
514214140000323
61021311550045
7111215621456
oct21170127015
95865626232
102313203213
11a878198a2
1254682b325
132ab3189c9
1417d30812d
15d812d828
hex89e0ae0d

2313203213 has 4 divisors (see below), whose sum is σ = 2313309180. Its totient is φ = 2313097248.

The previous prime is 2313203171. The next prime is 2313203251. The reversal of 2313203213 is 3123023132.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1653072964 + 660130249 = 40658^2 + 25693^2 .

It is a cyclic number.

It is not a de Polignac number, because 2313203213 - 214 = 2313186829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313203293) 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, 6848 + ... + 68361.

It is an arithmetic number, because the mean of its divisors is an integer number (578327295).

Almost surely, 22313203213 is an apocalyptic number.

It is an amenable number.

2313203213 is a deficient number, since it is larger than the sum of its proper divisors (105967).

2313203213 is an equidigital number, since it uses as much as digits as its factorization.

2313203213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105966.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 2313203213 is about 48095.7712590203. The cubic root of 2313203213 is about 1322.5271476924.

Adding to 2313203213 its reverse (3123023132), we get a palindrome (5436226345).

The spelling of 2313203213 in words is "two billion, three hundred thirteen million, two hundred three thousand, two hundred thirteen".

Divisors: 1 30757 75209 2313203213