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13130349 = 319230357
BaseRepresentation
bin110010000101…
…101001101101
3220201002110020
4302011221231
511330132344
61145232353
7216414621
oct62055155
926632406
1013130349
117459031
1244926b9
13294964b
141a5b181
151245719
hexc85a6d

13130349 has 8 divisors (see below), whose sum is σ = 18428640. Its totient is φ = 8292816.

The previous prime is 13130339. The next prime is 13130363. The reversal of 13130349 is 94303131.

13130349 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 13130349 - 25 = 13130317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13130339) 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, 115122 + ... + 115235.

It is an arithmetic number, because the mean of its divisors is an integer number (2303580).

Almost surely, 213130349 is an apocalyptic number.

13130349 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13130349 is a deficient number, since it is larger than the sum of its proper divisors (5298291).

13130349 is a wasteful number, since it uses less digits than its factorization.

13130349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230379.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 13130349 is about 3623.5823434828. The cubic root of 13130349 is about 235.9167390384.

The spelling of 13130349 in words is "thirteen million, one hundred thirty thousand, three hundred forty-nine".

Divisors: 1 3 19 57 230357 691071 4376783 13130349