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1804829 = 13197307
BaseRepresentation
bin110111000101000011101
310101200202112
412320220131
5430223304
6102403405
721224615
oct6705035
93350675
101804829
111022aa4
12730565
134b2660
1434da45
15259b6e
hex1b8a1d

1804829 has 8 divisors (see below), whose sum is σ = 2046240. Its totient is φ = 1578096.

The previous prime is 1804819. The next prime is 1804841. The reversal of 1804829 is 9284081.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1804829 - 24 = 1804813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1804795 and 1804804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3407 + ... + 3900.

It is an arithmetic number, because the mean of its divisors is an integer number (255780).

21804829 is an apocalyptic number.

1804829 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1804829 is a deficient number, since it is larger than the sum of its proper divisors (241411).

1804829 is a wasteful number, since it uses less digits than its factorization.

1804829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7339.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1804829 is about 1343.4392431368. The cubic root of 1804829 is about 121.7527240865.

The spelling of 1804829 in words is "one million, eight hundred four thousand, eight hundred twenty-nine".

Divisors: 1 13 19 247 7307 94991 138833 1804829