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13320008 = 2313211607
BaseRepresentation
bin110010110011…
…111101001000
3221001201121122
4302303331020
511402220013
61153254412
7221134562
oct62637510
927051548
1013320008
117578579
124564408
1329b4a80
141aaa332
151281a08
hexcb3f48

13320008 has 32 divisors (see below), whose sum is σ = 27068160. Its totient is φ = 6108480.

The previous prime is 13320001. The next prime is 13320011. The reversal of 13320008 is 80002331.

It is a super-2 number, since 2×133200082 = 354845226240128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13320001) 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, 21641 + ... + 22247.

It is an arithmetic number, because the mean of its divisors is an integer number (845880).

Almost surely, 213320008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13320008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13534080).

13320008 is an abundant number, since it is smaller than the sum of its proper divisors (13748152).

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

13320008 is a wasteful number, since it uses less digits than its factorization.

13320008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 13320008 is about 3649.6586141720. The cubic root of 13320008 is about 237.0471993208.

Adding to 13320008 its reverse (80002331), we get a palindrome (93322339).

The spelling of 13320008 in words is "thirteen million, three hundred twenty thousand, eight".

Divisors: 1 2 4 8 13 26 52 104 211 422 607 844 1214 1688 2428 2743 4856 5486 7891 10972 15782 21944 31564 63128 128077 256154 512308 1024616 1665001 3330002 6660004 13320008