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830941 = 2693089
BaseRepresentation
bin11001010110111011101
31120012211121
43022313131
5203042231
625450541
710030366
oct3126735
91505747
10830941
11518331
12340a51
132312a7
14178b6d
15116311

830941 has 4 divisors (see below), whose sum is σ = 834300. Its totient is φ = 827584.

The previous prime is 830939. The next prime is 830957. The reversal of 830941 is 149038.

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 403225 + 427716 = 635^2 + 654^2 .

It is a cyclic number.

It is not a de Polignac number, because 830941 - 21 = 830939 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276 + ... + 1813.

It is an arithmetic number, because the mean of its divisors is an integer number (208575).

2830941 is an apocalyptic number.

It is an amenable number.

830941 is a deficient number, since it is larger than the sum of its proper divisors (3359).

830941 is a wasteful number, since it uses less digits than its factorization.

830941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3358.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 830941 is about 911.5596524638. The cubic root of 830941 is about 94.0134657033.

Adding to 830941 its reverse (149038), we get a palindrome (979979).

It can be divided in two parts, 830 and 941, that added together give a palindrome (1771).

The spelling of 830941 in words is "eight hundred thirty thousand, nine hundred forty-one".

Divisors: 1 269 3089 830941