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30386269 is a prime number
BaseRepresentation
bin111001111101…
…0100001011101
32010011210010101
41303322201131
530234330034
63003141101
7516164464
oct163724135
963153111
1030386269
1116174721
12a214791
1363aba54
14406d9db
152a03514
hex1cfa85d

30386269 has 2 divisors, whose sum is σ = 30386270. Its totient is φ = 30386268.

The previous prime is 30386233. The next prime is 30386281. The reversal of 30386269 is 96268303.

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., 17960644 + 12425625 = 4238^2 + 3525^2 .

It is a cyclic number.

It is not a de Polignac number, because 30386269 - 27 = 30386141 is a prime.

It is a super-2 number, since 2×303862692 = 1846650687480722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30386219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15193134 + 15193135.

It is an arithmetic number, because the mean of its divisors is an integer number (15193135).

Almost surely, 230386269 is an apocalyptic number.

It is an amenable number.

30386269 is a deficient number, since it is larger than the sum of its proper divisors (1).

30386269 is an equidigital number, since it uses as much as digits as its factorization.

30386269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 30386269 is about 5512.3741708995. The cubic root of 30386269 is about 312.0511538140.

The spelling of 30386269 in words is "thirty million, three hundred eighty-six thousand, two hundred sixty-nine".