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828073 = 71107109
BaseRepresentation
bin11001010001010101001
31120001220101
43022022221
5202444243
625425401
710016131
oct3121251
91501811
10828073
11516164
1233b261
1322cbac
14177ac1
1511554d
hexca2a9

828073 has 8 divisors (see below), whose sum is σ = 855360. Its totient is φ = 801360.

The previous prime is 828071. The next prime is 828101. The reversal of 828073 is 370828.

It is a happy number.

It is the 372-nd star number.

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

It is a cyclic number.

It is not a de Polignac number, because 828073 - 21 = 828071 is a prime.

It is a Duffinian number.

828073 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (828071) 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, 7543 + ... + 7651.

It is an arithmetic number, because the mean of its divisors is an integer number (106920).

2828073 is an apocalyptic number.

It is an amenable number.

828073 is a deficient number, since it is larger than the sum of its proper divisors (27287).

828073 is a wasteful number, since it uses less digits than its factorization.

828073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 828073 is about 909.9851647142. The cubic root of 828073 is about 93.9051782611.

The spelling of 828073 in words is "eight hundred twenty-eight thousand, seventy-three".

Divisors: 1 71 107 109 7597 7739 11663 828073