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30320266 = 271213523
BaseRepresentation
bin111001110101…
…0011010001010
32010001102120211
41303222122022
530230222031
63001511334
7515501164
oct163523212
963042524
1030320266
111612a079
12a1a254a
1363879b2
144053934
1529ddbb1
hex1cea68a

30320266 has 8 divisors (see below), whose sum is σ = 46121184. Its totient is φ = 14946540.

The previous prime is 30320261. The next prime is 30320267. The reversal of 30320266 is 66202303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (30320261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106620 + ... + 106903.

It is an arithmetic number, because the mean of its divisors is an integer number (5765148).

Almost surely, 230320266 is an apocalyptic number.

30320266 is a deficient number, since it is larger than the sum of its proper divisors (15800918).

30320266 is a wasteful number, since it uses less digits than its factorization.

30320266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213596.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 30320266 is about 5506.3841130092. The cubic root of 30320266 is about 311.8250512174.

Adding to 30320266 its reverse (66202303), we get a palindrome (96522569).

The spelling of 30320266 in words is "thirty million, three hundred twenty thousand, two hundred sixty-six".

Divisors: 1 2 71 142 213523 427046 15160133 30320266