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13323128 = 2371318301
BaseRepresentation
bin110010110100…
…101101111000
3221001212220012
4302310231320
511402320003
61153321052
7221146640
oct62645570
927055805
1013323128
11757a955
124566188
1329b6310
141aab520
1512828d8
hexcb4b78

13323128 has 32 divisors (see below), whose sum is σ = 30747360. Its totient is φ = 5270400.

The previous prime is 13323127. The next prime is 13323169. The reversal of 13323128 is 82132331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13323127) 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 7 ways as a sum of consecutive naturals, for example, 8423 + ... + 9878.

It is an arithmetic number, because the mean of its divisors is an integer number (960855).

Almost surely, 213323128 is an apocalyptic number.

It is an amenable number.

13323128 is an abundant number, since it is smaller than the sum of its proper divisors (17424232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13323128 is a wasteful number, since it uses less digits than its factorization.

13323128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18327 (or 18323 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 13323128 is about 3650.0860263835. The cubic root of 13323128 is about 237.0657060545.

Adding to 13323128 its reverse (82132331), we get a palindrome (95455459).

The spelling of 13323128 in words is "thirteen million, three hundred twenty-three thousand, one hundred twenty-eight".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 364 728 18301 36602 73204 128107 146408 237913 256214 475826 512428 951652 1024856 1665391 1903304 3330782 6661564 13323128