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30135071 is a prime number
BaseRepresentation
bin111001011110…
…1001100011111
32002201000112202
41302331030133
530203310241
62553522115
7514100231
oct162751437
962630482
1030135071
1116012a1a
12a11333b
136321605
144006251
1529a3d9b
hex1cbd31f

30135071 has 2 divisors, whose sum is σ = 30135072. Its totient is φ = 30135070.

The previous prime is 30135047. The next prime is 30135113. The reversal of 30135071 is 17053103.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (17053103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30135071 - 214 = 30118687 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30135671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15067535 + 15067536.

It is an arithmetic number, because the mean of its divisors is an integer number (15067536).

Almost surely, 230135071 is an apocalyptic number.

30135071 is a deficient number, since it is larger than the sum of its proper divisors (1).

30135071 is an equidigital number, since it uses as much as digits as its factorization.

30135071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 30135071 is about 5489.5419663211. The cubic root of 30135071 is about 311.1888824799.

Adding to 30135071 its reverse (17053103), we get a palindrome (47188174).

The spelling of 30135071 in words is "thirty million, one hundred thirty-five thousand, seventy-one".