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2128841 = 111314887
BaseRepresentation
bin1000000111101111001001
311000011012222
420013233021
51021110331
6113343425
724044351
oct10075711
94004188
102128841
111224480
12867b75
13596c90
143d5b61
152c0b7b
hex207bc9

2128841 has 8 divisors (see below), whose sum is σ = 2501184. Its totient is φ = 1786320.

The previous prime is 2128837. The next prime is 2128849. The reversal of 2128841 is 1488212.

2128841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2128841 - 22 = 2128837 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2128841.

It is not an unprimeable number, because it can be changed into a prime (2128849) 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, 7301 + ... + 7586.

It is an arithmetic number, because the mean of its divisors is an integer number (312648).

22128841 is an apocalyptic number.

It is an amenable number.

2128841 is a deficient number, since it is larger than the sum of its proper divisors (372343).

2128841 is a wasteful number, since it uses less digits than its factorization.

2128841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14911.

The product of its digits is 1024, while the sum is 26.

The square root of 2128841 is about 1459.0548310465. The cubic root of 2128841 is about 128.6414940270.

The spelling of 2128841 in words is "two million, one hundred twenty-eight thousand, eight hundred forty-one".

Divisors: 1 11 13 143 14887 163757 193531 2128841