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79530413 is a prime number
BaseRepresentation
bin1001011110110…
…00100110101101
312112122120012212
410233120212231
5130324433123
611520340205
71653666044
oct457304655
9175576185
1079530413
1140990416
1222774665
1313627721
14a7c355b
156eae878
hex4bd89ad

79530413 has 2 divisors, whose sum is σ = 79530414. Its totient is φ = 79530412.

The previous prime is 79530313. The next prime is 79530419. The reversal of 79530413 is 31403597.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43072969 + 36457444 = 6563^2 + 6038^2 .

It is an emirp because it is prime and its reverse (31403597) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-79530413 is a prime.

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 79530413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79530419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39765206 + 39765207.

It is an arithmetic number, because the mean of its divisors is an integer number (39765207).

Almost surely, 279530413 is an apocalyptic number.

It is an amenable number.

79530413 is a deficient number, since it is larger than the sum of its proper divisors (1).

79530413 is an equidigital number, since it uses as much as digits as its factorization.

79530413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 79530413 is about 8917.9825633380. The cubic root of 79530413 is about 430.0422042585.

The spelling of 79530413 in words is "seventy-nine million, five hundred thirty thousand, four hundred thirteen".