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2144815 = 519107211
BaseRepresentation
bin1000001011101000101111
311000222010121
420023220233
51022113230
6113545411
724142051
oct10135057
94028117
102144815
111235482
12875267
135a132a
143db8d1
152c577a
hex20ba2f

2144815 has 16 divisors (see below), whose sum is σ = 2747520. Its totient is φ = 1602720.

The previous prime is 2144801. The next prime is 2144837. The reversal of 2144815 is 5184412.

2144815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2144815 - 25 = 2144783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2144815.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10060 + ... + 10270.

It is an arithmetic number, because the mean of its divisors is an integer number (171720).

22144815 is an apocalyptic number.

2144815 is a deficient number, since it is larger than the sum of its proper divisors (602705).

2144815 is a wasteful number, since it uses less digits than its factorization.

2144815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342.

The product of its digits is 1280, while the sum is 25.

The square root of 2144815 is about 1464.5186922672. The cubic root of 2144815 is about 128.9624512633.

The spelling of 2144815 in words is "two million, one hundred forty-four thousand, eight hundred fifteen".

Divisors: 1 5 19 95 107 211 535 1055 2033 4009 10165 20045 22577 112885 428963 2144815