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30180229 is a prime number
BaseRepresentation
bin111001100100…
…0001110000101
32002210022111021
41303020032011
530211231404
62554511141
7514346002
oct163101605
962708437
1030180229
1116043942
12a1354b1
136339031
1440188a9
1529b2454
hex1cc8385

30180229 has 2 divisors, whose sum is σ = 30180230. Its totient is φ = 30180228.

The previous prime is 30180221. The next prime is 30180259. The reversal of 30180229 is 92208103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24275329 + 5904900 = 4927^2 + 2430^2 .

It is a cyclic number.

It is not a de Polignac number, because 30180229 - 23 = 30180221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30180221) 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, 15090114 + 15090115.

It is an arithmetic number, because the mean of its divisors is an integer number (15090115).

Almost surely, 230180229 is an apocalyptic number.

It is an amenable number.

30180229 is a deficient number, since it is larger than the sum of its proper divisors (1).

30180229 is an equidigital number, since it uses as much as digits as its factorization.

30180229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 30180229 is about 5493.6535201995. The cubic root of 30180229 is about 311.3442457994.

The spelling of 30180229 in words is "thirty million, one hundred eighty thousand, two hundred twenty-nine".