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13331013 = 37956249
BaseRepresentation
bin110010110110…
…101001000101
3221002021201020
4302312221011
511403043023
61153421353
7221211633
oct62665105
927067636
1013331013
117585873
12456a859
1329b9a97
141ab0353
151284de3
hexcb6a45

13331013 has 8 divisors (see below), whose sum is σ = 18000000. Its totient is φ = 8774688.

The previous prime is 13331011. The next prime is 13331047. The reversal of 13331013 is 31013331.

13331013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13331013 - 21 = 13331011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13330983 and 13331001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13331011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27888 + ... + 28361.

It is an arithmetic number, because the mean of its divisors is an integer number (2250000).

Almost surely, 213331013 is an apocalyptic number.

It is an amenable number.

13331013 is a deficient number, since it is larger than the sum of its proper divisors (4668987).

13331013 is an equidigital number, since it uses as much as digits as its factorization.

13331013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56331.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 13331013 is about 3651.1659781500. The cubic root of 13331013 is about 237.1124642045.

Adding to 13331013 its reverse (31013331), we get a palindrome (44344344).

It can be divided in two parts, 1333 and 1013, that added together give a triangular number (2346 = T68).

The spelling of 13331013 in words is "thirteen million, three hundred thirty-one thousand, thirteen".

Divisors: 1 3 79 237 56249 168747 4443671 13331013