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2439313 = 17143489
BaseRepresentation
bin1001010011100010010001
311120221002221
421103202101
51111024223
6124141041
726506462
oct11234221
94527087
102439313
111416768
12997781
136753a6
14476d69
15332b5d
hex253891

2439313 has 4 divisors (see below), whose sum is σ = 2582820. Its totient is φ = 2295808.

The previous prime is 2439301. The next prime is 2439317. The reversal of 2439313 is 3139342.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1423249 + 1016064 = 1193^2 + 1008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2439313 is a prime.

It is a Duffinian number.

2439313 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2439317) 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, 71728 + ... + 71761.

It is an arithmetic number, because the mean of its divisors is an integer number (645705).

22439313 is an apocalyptic number.

It is an amenable number.

2439313 is a deficient number, since it is larger than the sum of its proper divisors (143507).

2439313 is a wasteful number, since it uses less digits than its factorization.

2439313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143506.

The product of its digits is 1944, while the sum is 25.

The square root of 2439313 is about 1561.8300163590. The cubic root of 2439313 is about 134.6136737491.

The spelling of 2439313 in words is "two million, four hundred thirty-nine thousand, three hundred thirteen".

Divisors: 1 17 143489 2439313