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830823 = 3739563
BaseRepresentation
bin11001010110101100111
31120012200020
43022311213
5203041243
625450223
710030140
oct3126547
91505606
10830823
11518234
12340973
13231216
14178ac7
15116283
hexcad67

830823 has 8 divisors (see below), whose sum is σ = 1266048. Its totient is φ = 474744.

The previous prime is 830801. The next prime is 830827. The reversal of 830823 is 328038.

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

It is not a de Polignac number, because 830823 - 28 = 830567 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 830793 and 830802.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 830823.

It is not an unprimeable number, because it can be changed into a prime (830827) 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, 19761 + ... + 19802.

It is an arithmetic number, because the mean of its divisors is an integer number (158256).

2830823 is an apocalyptic number.

830823 is a deficient number, since it is larger than the sum of its proper divisors (435225).

830823 is a wasteful number, since it uses less digits than its factorization.

830823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39573.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 830823 is about 911.4949259321. The cubic root of 830823 is about 94.0090152814.

It can be divided in two parts, 830 and 823, that added together give a triangular number (1653 = T57).

The spelling of 830823 in words is "eight hundred thirty thousand, eight hundred twenty-three".

Divisors: 1 3 7 21 39563 118689 276941 830823