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30327697 = 57752561
BaseRepresentation
bin111001110110…
…0001110010001
32010001210210001
41303230032101
530230441242
63002010001
7515531641
oct163541621
963053701
1030327697
1116134714
12a1a6901
13638b1aa
144056521
1529e0eb7
hex1cec391

30327697 has 4 divisors (see below), whose sum is σ = 30380836. Its totient is φ = 30274560.

The previous prime is 30327683. The next prime is 30327709. The reversal of 30327697 is 79672303.

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 28686736 + 1640961 = 5356^2 + 1281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30327697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30327637) 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, 25704 + ... + 26857.

It is an arithmetic number, because the mean of its divisors is an integer number (7595209).

Almost surely, 230327697 is an apocalyptic number.

It is an amenable number.

30327697 is a deficient number, since it is larger than the sum of its proper divisors (53139).

30327697 is an equidigital number, since it uses as much as digits as its factorization.

30327697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53138.

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 30327697 is about 5507.0588338967. The cubic root of 30327697 is about 311.8505235388.

The spelling of 30327697 in words is "thirty million, three hundred twenty-seven thousand, six hundred ninety-seven".

Divisors: 1 577 52561 30327697