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13013502 = 232168917
BaseRepresentation
bin110001101001…
…000111111110
3220111011011120
4301221013332
511312413002
61142531410
7215420145
oct61510776
926434146
1013013502
117389267
124436b66
1329083c8
141a2a75c
151220cbc
hexc691fe

13013502 has 8 divisors (see below), whose sum is σ = 26027016. Its totient is φ = 4337832.

The previous prime is 13013467. The next prime is 13013509. The reversal of 13013502 is 20531031.

It is a happy number.

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

13013502 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084453 + ... + 1084464.

It is an arithmetic number, because the mean of its divisors is an integer number (3253377).

Almost surely, 213013502 is an apocalyptic number.

13013502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13013502 is a wasteful number, since it uses less digits than its factorization.

13013502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168922.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 13013502 is about 3607.4231800553. The cubic root of 13013502 is about 235.2148450184.

Adding to 13013502 its reverse (20531031), we get a palindrome (33544533).

The spelling of 13013502 in words is "thirteen million, thirteen thousand, five hundred two".

Divisors: 1 2 3 6 2168917 4337834 6506751 13013502