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1828133 = 3749409
BaseRepresentation
bin110111110010100100101
310102212201122
412332110211
5432000013
6103103325
721352556
oct6762445
93385648
101828133
11103955a
12741b45
134c0148
1435832d
15261a08
hex1be525

1828133 has 4 divisors (see below), whose sum is σ = 1877580. Its totient is φ = 1778688.

The previous prime is 1828121. The next prime is 1828153. The reversal of 1828133 is 3318281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3318281 = 17195193.

It can be written as a sum of positive squares in 2 ways, for example, as 1216609 + 611524 = 1103^2 + 782^2 .

It is a cyclic number.

It is not a de Polignac number, because 1828133 - 24 = 1828117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828153) 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, 24668 + ... + 24741.

It is an arithmetic number, because the mean of its divisors is an integer number (469395).

21828133 is an apocalyptic number.

It is an amenable number.

1828133 is a deficient number, since it is larger than the sum of its proper divisors (49447).

1828133 is an equidigital number, since it uses as much as digits as its factorization.

1828133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49446.

The product of its digits is 1152, while the sum is 26.

The square root of 1828133 is about 1352.0846866968. The cubic root of 1828133 is about 122.2745095227.

The spelling of 1828133 in words is "one million, eight hundred twenty-eight thousand, one hundred thirty-three".

Divisors: 1 37 49409 1828133