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2889193 = 13721089
BaseRepresentation
bin1011000001010111101001
312102210020011
423001113221
51214423233
6141531521
733362206
oct13012751
95383204
102889193
1116a376a
12b73ba1
137a20a8
14552cad
153c10cd
hex2c15e9

2889193 has 4 divisors (see below), whose sum is σ = 2910420. Its totient is φ = 2867968.

The previous prime is 2889181. The next prime is 2889209. The reversal of 2889193 is 3919882.

2889193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3919882 = 21959941.

It can be written as a sum of positive squares in 2 ways, for example, as 2442969 + 446224 = 1563^2 + 668^2 .

It is a cyclic number.

It is not a de Polignac number, because 2889193 - 217 = 2758121 is a prime.

It is a Duffinian number.

2889193 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2889113) 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 3 ways as a sum of consecutive naturals, for example, 10408 + ... + 10681.

It is an arithmetic number, because the mean of its divisors is an integer number (727605).

22889193 is an apocalyptic number.

It is an amenable number.

2889193 is a deficient number, since it is larger than the sum of its proper divisors (21227).

2889193 is a wasteful number, since it uses less digits than its factorization.

2889193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21226.

The product of its digits is 31104, while the sum is 40.

The square root of 2889193 is about 1699.7626304870. The cubic root of 2889193 is about 142.4269534312.

The spelling of 2889193 in words is "two million, eight hundred eighty-nine thousand, one hundred ninety-three".

Divisors: 1 137 21089 2889193