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2128313 = 111911013
BaseRepresentation
bin1000000111100110111001
311000010111102
420013212321
51021101223
6113341145
724042665
oct10074671
94003442
102128313
111224040
128677b5
13596975
143d58a5
152c0928
hex2079b9

2128313 has 8 divisors (see below), whose sum is σ = 2336256. Its totient is φ = 1922800.

The previous prime is 2128309. The next prime is 2128319. The reversal of 2128313 is 3138212.

2128313 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 not a de Polignac number, because 2128313 - 22 = 2128309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2128319) 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, 1595 + ... + 2607.

It is an arithmetic number, because the mean of its divisors is an integer number (292032).

22128313 is an apocalyptic number.

It is an amenable number.

2128313 is a deficient number, since it is larger than the sum of its proper divisors (207943).

2128313 is a wasteful number, since it uses less digits than its factorization.

2128313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215.

The product of its digits is 288, while the sum is 20.

The square root of 2128313 is about 1458.8738807724. The cubic root of 2128313 is about 128.6308578287.

The spelling of 2128313 in words is "two million, one hundred twenty-eight thousand, three hundred thirteen".

Divisors: 1 11 191 1013 2101 11143 193483 2128313