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13330213 = 13278877
BaseRepresentation
bin110010110110…
…011100100101
3221002020121121
4302312130211
511403031323
61153413541
7221206411
oct62663445
927066547
1013330213
117585206
12456a2b1
1329b9600
141aadd41
151284a5d
hexcb6725

13330213 has 6 divisors (see below), whose sum is σ = 14434674. Its totient is φ = 12304656.

The previous prime is 13330199. The next prime is 13330231. The reversal of 13330213 is 31203331.

It can be written as a sum of positive squares in 3 ways, for example, as 66049 + 13264164 = 257^2 + 3642^2 .

It is not a de Polignac number, because 13330213 - 25 = 13330181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13330243) 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 5 ways as a sum of consecutive naturals, for example, 39270 + ... + 39607.

It is an arithmetic number, because the mean of its divisors is an integer number (2405779).

Almost surely, 213330213 is an apocalyptic number.

13330213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13330213 is a deficient number, since it is larger than the sum of its proper divisors (1104461).

13330213 is an equidigital number, since it uses as much as digits as its factorization.

13330213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78903 (or 78890 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 13330213 is about 3651.0564224619. The cubic root of 13330213 is about 237.1077210349.

Adding to 13330213 its reverse (31203331), we get a palindrome (44533544).

The spelling of 13330213 in words is "thirteen million, three hundred thirty thousand, two hundred thirteen".

Divisors: 1 13 169 78877 1025401 13330213