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313930 = 2531393
BaseRepresentation
bin1001100101001001010
3120221122001
41030221022
540021210
610421214
72445151
oct1145112
9527561
10313930
111a4951
1213180a
13acb76
1482598
156303a
hex4ca4a

313930 has 8 divisors (see below), whose sum is σ = 565092. Its totient is φ = 125568.

The previous prime is 313921. The next prime is 313931. The reversal of 313930 is 39313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 290521 + 23409 = 539^2 + 153^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 313898 and 313907.

It is not an unprimeable number, because it can be changed into a prime (313931) 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, 15687 + ... + 15706.

2313930 is an apocalyptic number.

313930 is a deficient number, since it is larger than the sum of its proper divisors (251162).

313930 is a wasteful number, since it uses less digits than its factorization.

313930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31400.

The product of its (nonzero) digits is 243, while the sum is 19.

The square root of 313930 is about 560.2945653850. The cubic root of 313930 is about 67.9637927199.

The spelling of 313930 in words is "three hundred thirteen thousand, nine hundred thirty".

Divisors: 1 2 5 10 31393 62786 156965 313930