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30338065 = 56067613
BaseRepresentation
bin111001110111…
…0110000010001
32010002100000001
41303232300101
530231304230
63002130001
7515604112
oct163566021
963070001
1030338065
111614148a
12a1b0901
136392b24
14405a209
1529e40ca
hex1ceec11

30338065 has 4 divisors (see below), whose sum is σ = 36405684. Its totient is φ = 24270448.

The previous prime is 30338029. The next prime is 30338071. The reversal of 30338065 is 56083303.

It is a Cunningham number, because it is equal to 55082+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10916416 + 19421649 = 3304^2 + 4407^2 .

It is a cyclic number.

It is not a de Polignac number, because 30338065 - 211 = 30336017 is a prime.

It is a Duffinian 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, 3033802 + ... + 3033811.

It is an arithmetic number, because the mean of its divisors is an integer number (9101421).

Almost surely, 230338065 is an apocalyptic number.

It is an amenable number.

30338065 is a deficient number, since it is larger than the sum of its proper divisors (6067619).

30338065 is an equidigital number, since it uses as much as digits as its factorization.

30338065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6067618.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 30338065 is about 5508.0000907771. Note that the first 4 decimals coincide. The cubic root of 30338065 is about 311.8860564913.

The spelling of 30338065 in words is "thirty million, three hundred thirty-eight thousand, sixty-five".

Divisors: 1 5 6067613 30338065