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13628333 = 31343541
BaseRepresentation
bin110011111111…
…001110101101
3221122101120002
4303333032231
511442101313
61204034045
7223560515
oct63771655
927571502
1013628333
117769194
124692925
132a92204
141b4a845
1512e3058
hexcff3ad

13628333 has 4 divisors (see below), whose sum is σ = 13672188. Its totient is φ = 13584480.

The previous prime is 13628327. The next prime is 13628341. The reversal of 13628333 is 33382631.

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 574564 + 13053769 = 758^2 + 3613^2 .

It is a cyclic number.

It is not a de Polignac number, because 13628333 - 216 = 13562797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13628296 and 13628305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13628353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21458 + ... + 22083.

It is an arithmetic number, because the mean of its divisors is an integer number (3418047).

Almost surely, 213628333 is an apocalyptic number.

It is an amenable number.

13628333 is a deficient number, since it is larger than the sum of its proper divisors (43855).

13628333 is an equidigital number, since it uses as much as digits as its factorization.

13628333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43854.

The product of its digits is 7776, while the sum is 29.

The square root of 13628333 is about 3691.6572159397. The cubic root of 13628333 is about 238.8622830133.

The spelling of 13628333 in words is "thirteen million, six hundred twenty-eight thousand, three hundred thirty-three".

Divisors: 1 313 43541 13628333