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30078413 is a prime number
BaseRepresentation
bin111001010111…
…1010111001101
32002121010211022
41302233113031
530200002123
62552403525
7513443111
oct162572715
962533738
1030078413
1115a843a2
12a0a65a5
1363018a1
143dcd741
1529921c8
hex1caf5cd

30078413 has 2 divisors, whose sum is σ = 30078414. Its totient is φ = 30078412.

The previous prime is 30078407. The next prime is 30078421. The reversal of 30078413 is 31487003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29181604 + 896809 = 5402^2 + 947^2 .

It is a cyclic number.

It is not a de Polignac number, because 30078413 - 24 = 30078397 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30078403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15039206 + 15039207.

It is an arithmetic number, because the mean of its divisors is an integer number (15039207).

Almost surely, 230078413 is an apocalyptic number.

It is an amenable number.

30078413 is a deficient number, since it is larger than the sum of its proper divisors (1).

30078413 is an equidigital number, since it uses as much as digits as its factorization.

30078413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 30078413 is about 5484.3789985740. The cubic root of 30078413 is about 310.9937344299.

The spelling of 30078413 in words is "thirty million, seventy-eight thousand, four hundred thirteen".