Search a number
-
+
828041 = 3126711
BaseRepresentation
bin11001010001010001001
31120001212012
43022022021
5202444131
625425305
710016054
oct3121211
91501765
10828041
11516135
1233b235
1322cb86
14177a9b
1511552b
hexca289

828041 has 4 divisors (see below), whose sum is σ = 854784. Its totient is φ = 801300.

The previous prime is 828029. The next prime is 828043. The reversal of 828041 is 140828.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-828041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 827998 and 828016.

It is not an unprimeable number, because it can be changed into a prime (828043) 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, 13325 + ... + 13386.

It is an arithmetic number, because the mean of its divisors is an integer number (213696).

2828041 is an apocalyptic number.

It is an amenable number.

828041 is a deficient number, since it is larger than the sum of its proper divisors (26743).

828041 is a wasteful number, since it uses less digits than its factorization.

828041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26742.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 828041 is about 909.9675818401. The cubic root of 828041 is about 93.9039686236.

Adding to 828041 its reverse (140828), we get a palindrome (968869).

The spelling of 828041 in words is "eight hundred twenty-eight thousand, forty-one".

Divisors: 1 31 26711 828041