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30273085 = 56054617
BaseRepresentation
bin111001101111…
…0111000111101
32002222000212101
41303132320331
530222214320
63000505101
7515213503
oct163367075
962860771
1030273085
11160a7687
12a17b191
13636c38b
144040673
1529cec0a
hex1cdee3d

30273085 has 4 divisors (see below), whose sum is σ = 36327708. Its totient is φ = 24218464.

The previous prime is 30273059. The next prime is 30273109. The reversal of 30273085 is 58037203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58037203 = 78291029.

It can be written as a sum of positive squares in 2 ways, for example, as 15319396 + 14953689 = 3914^2 + 3867^2 .

It is a cyclic number.

It is not a de Polignac number, because 30273085 - 221 = 28175933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3027304 + ... + 3027313.

It is an arithmetic number, because the mean of its divisors is an integer number (9081927).

Almost surely, 230273085 is an apocalyptic number.

It is an amenable number.

30273085 is a deficient number, since it is larger than the sum of its proper divisors (6054623).

30273085 is an equidigital number, since it uses as much as digits as its factorization.

30273085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6054622.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 30273085 is about 5502.0982361277. The cubic root of 30273085 is about 311.6632248501.

The spelling of 30273085 in words is "thirty million, two hundred seventy-three thousand, eighty-five".

Divisors: 1 5 6054617 30273085