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30053165 = 56010633
BaseRepresentation
bin111001010100…
…1001100101101
32002112212012012
41302221030231
530143200130
62552051005
7513306362
oct162511455
962485165
1030053165
1115a6742a
12a093a65
1362c324c
143dc4469
152989995
hex1ca932d

30053165 has 4 divisors (see below), whose sum is σ = 36063804. Its totient is φ = 24042528.

The previous prime is 30053159. The next prime is 30053171. The reversal of 30053165 is 56135003.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (30053159) and next prime (30053171).

It can be written as a sum of positive squares in 2 ways, for example, as 10666756 + 19386409 = 3266^2 + 4403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30053165 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30053165.

It is a congruent number.

It is an unprimeable number.

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, 3005312 + ... + 3005321.

It is an arithmetic number, because the mean of its divisors is an integer number (9015951).

Almost surely, 230053165 is an apocalyptic number.

It is an amenable number.

30053165 is a deficient number, since it is larger than the sum of its proper divisors (6010639).

30053165 is an equidigital number, since it uses as much as digits as its factorization.

30053165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6010638.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 30053165 is about 5482.0767050453. The cubic root of 30053165 is about 310.9066934034.

Adding to 30053165 its reverse (56135003), we get a palindrome (86188168).

The spelling of 30053165 in words is "thirty million, fifty-three thousand, one hundred sixty-five".

Divisors: 1 5 6010633 30053165