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30117169 is a prime number
BaseRepresentation
bin111001011100…
…0110100110001
32002200002222201
41302320310301
530202222134
62553303201
7513664105
oct162706461
962602881
1030117169
1116000525
12a104b01
136316414
143ddd905
15299d914
hex1cb8d31

30117169 has 2 divisors, whose sum is σ = 30117170. Its totient is φ = 30117168.

The previous prime is 30117127. The next prime is 30117181. The reversal of 30117169 is 96171103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30107169 + 10000 = 5487^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 30117169 - 27 = 30117041 is a prime.

It is a super-2 number, since 2×301171692 = 1814087737149122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31117169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15058584 + 15058585.

It is an arithmetic number, because the mean of its divisors is an integer number (15058585).

Almost surely, 230117169 is an apocalyptic number.

It is an amenable number.

30117169 is a deficient number, since it is larger than the sum of its proper divisors (1).

30117169 is an equidigital number, since it uses as much as digits as its factorization.

30117169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 30117169 is about 5487.9111691061. The cubic root of 30117169 is about 311.1272487897.

The spelling of 30117169 in words is "thirty million, one hundred seventeen thousand, one hundred sixty-nine".