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315713 = 491643
BaseRepresentation
bin1001101000101000001
3121001002002
41031011001
540100323
610433345
72453306
oct1150501
9531062
10315713
111a6222
12132855
13b0918
14830ad
1563828
hex4d141

315713 has 4 divisors (see below), whose sum is σ = 316848. Its totient is φ = 314580.

The previous prime is 315703. The next prime is 315739. The reversal of 315713 is 317513.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 315713 - 24 = 315697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170 + ... + 812.

It is an arithmetic number, because the mean of its divisors is an integer number (79212).

2315713 is an apocalyptic number.

It is an amenable number.

315713 is a deficient number, since it is larger than the sum of its proper divisors (1135).

315713 is an equidigital number, since it uses as much as digits as its factorization.

315713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134.

The product of its digits is 315, while the sum is 20.

The square root of 315713 is about 561.8834398699. The cubic root of 315713 is about 68.0922191698.

It can be divided in two parts, 3157 and 13, that multiplied together give a triangular number (41041 = T286).

The spelling of 315713 in words is "three hundred fifteen thousand, seven hundred thirteen".

Divisors: 1 491 643 315713