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230201243 is a prime number
BaseRepresentation
bin11011011100010…
…01011110011011
3121001011102201222
431232021132123
5432412414433
634502002255
75463451436
oct1556113633
9531142658
10230201243
11108a40668
126511638b
13388cca6c
142280481d
1515322b98
hexdb8979b

230201243 has 2 divisors, whose sum is σ = 230201244. Its totient is φ = 230201242.

The previous prime is 230201219. The next prime is 230201249. The reversal of 230201243 is 342102032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230201243 - 214 = 230184859 is a prime.

It is a super-2 number, since 2×2302012432 = 105985224557490098, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (230201249) 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 as a sum of consecutive naturals, namely, 115100621 + 115100622.

It is an arithmetic number, because the mean of its divisors is an integer number (115100622).

Almost surely, 2230201243 is an apocalyptic number.

230201243 is a deficient number, since it is larger than the sum of its proper divisors (1).

230201243 is an equidigital number, since it uses as much as digits as its factorization.

230201243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 230201243 is about 15172.3842226593. The cubic root of 230201243 is about 612.8712112135.

Adding to 230201243 its reverse (342102032), we get a palindrome (572303275).

The spelling of 230201243 in words is "two hundred thirty million, two hundred one thousand, two hundred forty-three".