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830713 = 1363901
BaseRepresentation
bin11001010110011111001
31120012112011
43022303321
5203040323
625445521
710026622
oct3126371
91505464
10830713
11518144
123408a1
13231160
14178a49
1511620d
hexcacf9

830713 has 4 divisors (see below), whose sum is σ = 894628. Its totient is φ = 766800.

The previous prime is 830693. The next prime is 830719. The reversal of 830713 is 317038.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 317038 = 2158519.

It can be written as a sum of positive squares in 2 ways, for example, as 480249 + 350464 = 693^2 + 592^2 .

It is a cyclic number.

It is not a de Polignac number, because 830713 - 217 = 699641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (830719) 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, 31938 + ... + 31963.

It is an arithmetic number, because the mean of its divisors is an integer number (223657).

2830713 is an apocalyptic number.

It is an amenable number.

830713 is a deficient number, since it is larger than the sum of its proper divisors (63915).

830713 is a wasteful number, since it uses less digits than its factorization.

830713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63914.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 830713 is about 911.4345835001. The cubic root of 830713 is about 94.0048662035.

The spelling of 830713 in words is "eight hundred thirty thousand, seven hundred thirteen".

Divisors: 1 13 63901 830713