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13320038 = 219313449
BaseRepresentation
bin110010110011…
…111101100110
3221001201122202
4302303331212
511402220123
61153254502
7221134634
oct62637546
927051582
1013320038
1175785a6
124564432
1329b4aa4
141aaa354
151281a28
hexcb3f66

13320038 has 8 divisors (see below), whose sum is σ = 19996200. Its totient is φ = 6654640.

The previous prime is 13320029. The next prime is 13320071. The reversal of 13320038 is 83002331.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2138 + ... + 5586.

It is an arithmetic number, because the mean of its divisors is an integer number (2499525).

Almost surely, 213320038 is an apocalyptic number.

13320038 is a deficient number, since it is larger than the sum of its proper divisors (6676162).

13320038 is a wasteful number, since it uses less digits than its factorization.

13320038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5382.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 13320038 is about 3649.6627241432. The cubic root of 13320038 is about 237.0473772839.

Adding to 13320038 its reverse (83002331), we get a palindrome (96322369).

The spelling of 13320038 in words is "thirteen million, three hundred twenty thousand, thirty-eight".

Divisors: 1 2 1931 3449 3862 6898 6660019 13320038