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230194969 is a prime number
BaseRepresentation
bin11011011100001…
…11111100011001
3121001011010010121
431232013330121
5432412214334
634501513241
75463424234
oct1556077431
9531133117
10230194969
11108a36984
1265112821
13388c9c54
142280241b
1515320db4
hexdb87f19

230194969 has 2 divisors, whose sum is σ = 230194970. Its totient is φ = 230194968.

The previous prime is 230194967. The next prime is 230194999. The reversal of 230194969 is 969491032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183954969 + 46240000 = 13563^2 + 6800^2 .

It is a cyclic number.

It is not a de Polignac number, because 230194969 - 21 = 230194967 is a prime.

It is a super-2 number, since 2×2301949692 = 105979447505821922, which contains 22 as substring.

Together with 230194967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (230194961) 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, 115097484 + 115097485.

It is an arithmetic number, because the mean of its divisors is an integer number (115097485).

Almost surely, 2230194969 is an apocalyptic number.

It is an amenable number.

230194969 is a deficient number, since it is larger than the sum of its proper divisors (1).

230194969 is an equidigital number, since it uses as much as digits as its factorization.

230194969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 230194969 is about 15172.1774640293. The cubic root of 230194969 is about 612.8656433477.

The spelling of 230194969 in words is "two hundred thirty million, one hundred ninety-four thousand, nine hundred sixty-nine".