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2185055 = 5437011
BaseRepresentation
bin1000010101011101011111
311010000022222
420111131133
51024410210
6114455555
724400265
oct10253537
94100288
102185055
111262734
128945bb
135b6742
1440c435
152d2655
hex21575f

2185055 has 4 divisors (see below), whose sum is σ = 2622072. Its totient is φ = 1748040.

The previous prime is 2185037. The next prime is 2185091. The reversal of 2185055 is 5505812.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2185055 - 26 = 2184991 is a prime.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a zygodrome in base 6.

It is a congruent number.

It is an unprimeable number.

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, 218501 + ... + 218510.

It is an arithmetic number, because the mean of its divisors is an integer number (655518).

22185055 is an apocalyptic number.

2185055 is a deficient number, since it is larger than the sum of its proper divisors (437017).

2185055 is an equidigital number, since it uses as much as digits as its factorization.

2185055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437016.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 2185055 is about 1478.1931538199. The cubic root of 2185055 is about 129.7639701423.

The spelling of 2185055 in words is "two million, one hundred eighty-five thousand, fifty-five".

Divisors: 1 5 437011 2185055