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30152513 is a prime number
BaseRepresentation
bin111001100000…
…1011101000001
32002201220110202
41303001131001
530204340023
62554134545
7514202126
oct163013501
962656422
1030152513
1116025036
12a121455
136329531
14400c74d
1529a9128
hex1cc1741

30152513 has 2 divisors, whose sum is σ = 30152514. Its totient is φ = 30152512.

The previous prime is 30152501. The next prime is 30152527. The reversal of 30152513 is 31525103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15460624 + 14691889 = 3932^2 + 3833^2 .

It is an emirp because it is prime and its reverse (31525103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30152513 - 214 = 30136129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30152593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15076256 + 15076257.

It is an arithmetic number, because the mean of its divisors is an integer number (15076257).

Almost surely, 230152513 is an apocalyptic number.

It is an amenable number.

30152513 is a deficient number, since it is larger than the sum of its proper divisors (1).

30152513 is an equidigital number, since it uses as much as digits as its factorization.

30152513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 30152513 is about 5491.1303936439. The cubic root of 30152513 is about 311.2489089923.

Adding to 30152513 its reverse (31525103), we get a palindrome (61677616).

The spelling of 30152513 in words is "thirty million, one hundred fifty-two thousand, five hundred thirteen".