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230320202213 = 1723517226601
BaseRepresentation
bin1101011010000000100…
…1110110000111100101
3211000111102002112201202
43112200021312013211
512233143432432323
6253450241132245
722432356263003
oct3264011660745
9730442075652
10230320202213
1189750827962
123877992a085
1318946b3652a
14b20cc7ba73
155ed024cd28
hex35a02761e5

230320202213 has 12 divisors (see below), whose sum is σ = 244736051652. Its totient is φ = 216709363200.

The previous prime is 230320202197. The next prime is 230320202257. The reversal of 230320202213 is 312202023032.

It can be written as a sum of positive squares in 6 ways, for example, as 156500942404 + 73819259809 = 395602^2 + 271697^2 .

It is not a de Polignac number, because 230320202213 - 24 = 230320202197 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 (230320202293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 903113 + ... + 1129713.

It is an arithmetic number, because the mean of its divisors is an integer number (20394670971).

Almost surely, 2230320202213 is an apocalyptic number.

It is an amenable number.

230320202213 is a deficient number, since it is larger than the sum of its proper divisors (14415849439).

230320202213 is a wasteful number, since it uses less digits than its factorization.

230320202213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230152 (or 230135 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 230320202213 its reverse (312202023032), we get a palindrome (542522225245).

The spelling of 230320202213 in words is "two hundred thirty billion, three hundred twenty million, two hundred two thousand, two hundred thirteen".

Divisors: 1 17 289 3517 59789 226601 1016413 3852217 65487689 796955717 13548247189 230320202213