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12330545 = 54160149
BaseRepresentation
bin101111000010…
…011000110001
3212012110022212
4233002120301
511124034140
61120141505
7206544053
oct57023061
925173285
1012330545
116a62137
124167895
1327295a6
1418cd8d3
151138765
hexbc2631

12330545 has 8 divisors (see below), whose sum is σ = 15157800. Its totient is φ = 9623680.

The previous prime is 12330533. The next prime is 12330547. The reversal of 12330545 is 54503321.

It can be written as a sum of positive squares in 4 ways, for example, as 59536 + 12271009 = 244^2 + 3503^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12330545 - 210 = 12329521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12330545.

It is not an unprimeable number, because it can be changed into a prime (12330547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29870 + ... + 30279.

It is an arithmetic number, because the mean of its divisors is an integer number (1894725).

Almost surely, 212330545 is an apocalyptic number.

It is an amenable number.

12330545 is a deficient number, since it is larger than the sum of its proper divisors (2827255).

12330545 is an equidigital number, since it uses as much as digits as its factorization.

12330545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60195.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 12330545 is about 3511.4875765123. The cubic root of 12330545 is about 231.0259461245.

Adding to 12330545 its reverse (54503321), we get a palindrome (66833866).

The spelling of 12330545 in words is "twelve million, three hundred thirty thousand, five hundred forty-five".

Divisors: 1 5 41 205 60149 300745 2466109 12330545