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828105 = 3555207
BaseRepresentation
bin11001010001011001001
31120001221120
43022023021
5202444410
625425453
710016205
oct3121311
91501846
10828105
11516193
1233b289
1322cc05
14177b05
15115570
hexca2c9

828105 has 8 divisors (see below), whose sum is σ = 1324992. Its totient is φ = 441648.

The previous prime is 828101. The next prime is 828109. The reversal of 828105 is 501828.

It is an interprime number because it is at equal distance from previous prime (828101) and next prime (828109).

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

It is not a de Polignac number, because 828105 - 22 = 828101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (828101) 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, 27589 + ... + 27618.

It is an arithmetic number, because the mean of its divisors is an integer number (165624).

2828105 is an apocalyptic number.

It is an amenable number.

828105 is a deficient number, since it is larger than the sum of its proper divisors (496887).

828105 is a wasteful number, since it uses less digits than its factorization.

828105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55215.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 828105 is about 910.0027472486. The cubic root of 828105 is about 93.9063878674.

The spelling of 828105 in words is "eight hundred twenty-eight thousand, one hundred five".

Divisors: 1 3 5 15 55207 165621 276035 828105