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828061 = 1363697
BaseRepresentation
bin11001010001010011101
31120001212221
43022022131
5202444221
625425341
710016113
oct3121235
91501787
10828061
11516153
1233b251
1322cba0
14177ab3
15115541
hexca29d

828061 has 4 divisors (see below), whose sum is σ = 891772. Its totient is φ = 764352.

The previous prime is 828059. The next prime is 828067. The reversal of 828061 is 160828.

828061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 72900 + 755161 = 270^2 + 869^2 .

It is a cyclic number.

It is not a de Polignac number, because 828061 - 21 = 828059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828067) 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, 31836 + ... + 31861.

It is an arithmetic number, because the mean of its divisors is an integer number (222943).

2828061 is an apocalyptic number.

It is an amenable number.

828061 is a deficient number, since it is larger than the sum of its proper divisors (63711).

828061 is a wasteful number, since it uses less digits than its factorization.

828061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63710.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 828061 is about 909.9785711763. The cubic root of 828061 is about 93.9047246507.

Adding to 828061 its reverse (160828), we get a palindrome (988889).

The spelling of 828061 in words is "eight hundred twenty-eight thousand, sixty-one".

Divisors: 1 13 63697 828061