Search a number
-
+
1828741 = 17971109
BaseRepresentation
bin110111110011110000101
310102220120011
412332132011
5432004431
6103110221
721354415
oct6763605
93386504
101828741
111039a62
12742371
134c04c5
14358645
15261cb1
hex1be785

1828741 has 8 divisors (see below), whose sum is σ = 1958040. Its totient is φ = 1701888.

The previous prime is 1828727. The next prime is 1828759. The reversal of 1828741 is 1478281.

It can be written as a sum of positive squares in 4 ways, for example, as 62500 + 1766241 = 250^2 + 1329^2 .

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 1828741 - 25 = 1828709 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 (1828781) 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 7 ways as a sum of consecutive naturals, for example, 1095 + ... + 2203.

It is an arithmetic number, because the mean of its divisors is an integer number (244755).

21828741 is an apocalyptic number.

It is an amenable number.

1828741 is a deficient number, since it is larger than the sum of its proper divisors (129299).

1828741 is a wasteful number, since it uses less digits than its factorization.

1828741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223.

The product of its digits is 3584, while the sum is 31.

The square root of 1828741 is about 1352.3095059934. The cubic root of 1828741 is about 122.2880633618.

The spelling of 1828741 in words is "one million, eight hundred twenty-eight thousand, seven hundred forty-one".

Divisors: 1 17 97 1109 1649 18853 107573 1828741