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30165227 = 41597253
BaseRepresentation
bin111001100010…
…0100011101011
32002202112220122
41303010203223
530210241402
62554313455
7514254161
oct163044353
962675818
1030165227
1116033644
12a12888b
136332261
144013231
1529acca2
hex1cc48eb

30165227 has 4 divisors (see below), whose sum is σ = 30176640. Its totient is φ = 30153816.

The previous prime is 30165221. The next prime is 30165257. The reversal of 30165227 is 72256103.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 72256103 = 174250359.

It is a cyclic number.

It is not a de Polignac number, because 30165227 - 214 = 30148843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30165196 and 30165205.

It is not an unprimeable number, because it can be changed into a prime (30165221) 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 in 3 ways as a sum of consecutive naturals, for example, 533 + ... + 7785.

It is an arithmetic number, because the mean of its divisors is an integer number (7544160).

Almost surely, 230165227 is an apocalyptic number.

30165227 is a deficient number, since it is larger than the sum of its proper divisors (11413).

30165227 is an equidigital number, since it uses as much as digits as its factorization.

30165227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11412.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 30165227 is about 5492.2879567626. The cubic root of 30165227 is about 311.2926495429.

The spelling of 30165227 in words is "thirty million, one hundred sixty-five thousand, two hundred twenty-seven".

Divisors: 1 4159 7253 30165227