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30179141 is a prime number
BaseRepresentation
bin111001100011…
…1111101000101
32002210020222222
41303013331011
530211213031
62554502125
7514342556
oct163077505
962706888
1030179141
1116043043
12a134945
1363386a5
14401832d
1529b1e7b
hex1cc7f45

30179141 has 2 divisors, whose sum is σ = 30179142. Its totient is φ = 30179140.

The previous prime is 30179117. The next prime is 30179143. The reversal of 30179141 is 14197103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19096900 + 11082241 = 4370^2 + 3329^2 .

It is an emirp because it is prime and its reverse (14197103) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30179141 is a prime.

Together with 30179143, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30179141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30179143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15089570 + 15089571.

It is an arithmetic number, because the mean of its divisors is an integer number (15089571).

Almost surely, 230179141 is an apocalyptic number.

It is an amenable number.

30179141 is a deficient number, since it is larger than the sum of its proper divisors (1).

30179141 is an equidigital number, since it uses as much as digits as its factorization.

30179141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 30179141 is about 5493.5544959525. The cubic root of 30179141 is about 311.3405044249.

The spelling of 30179141 in words is "thirty million, one hundred seventy-nine thousand, one hundred forty-one".