Search a number
-
+
12328045 = 52985021
BaseRepresentation
bin101111000001…
…110001101101
3212012022220021
4233001301231
511123444140
61120122141
7206533552
oct57016155
925168807
1012328045
116a60274
124166351
132728402
1418cca29
151137b4a
hexbc1c6d

12328045 has 8 divisors (see below), whose sum is σ = 15303960. Its totient is φ = 9522240.

The previous prime is 12328037. The next prime is 12328051. The reversal of 12328045 is 54082321.

It can be written as a sum of positive squares in 4 ways, for example, as 842724 + 11485321 = 918^2 + 3389^2 .

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

It is not a de Polignac number, because 12328045 - 23 = 12328037 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 42366 + ... + 42655.

It is an arithmetic number, because the mean of its divisors is an integer number (1912995).

Almost surely, 212328045 is an apocalyptic number.

It is an amenable number.

12328045 is a deficient number, since it is larger than the sum of its proper divisors (2975915).

12328045 is an equidigital number, since it uses as much as digits as its factorization.

12328045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85055.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 12328045 is about 3511.1315839769. The cubic root of 12328045 is about 231.0103316781.

The spelling of 12328045 in words is "twelve million, three hundred twenty-eight thousand, forty-five".

Divisors: 1 5 29 145 85021 425105 2465609 12328045