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2288105 = 5457621
BaseRepresentation
bin1000101110100111101001
311022020200122
420232213221
51041204410
6121013025
725306601
oct10564751
94266618
102288105
1113230a6
12924175
13621611
14437c01
15302e55
hex22e9e9

2288105 has 4 divisors (see below), whose sum is σ = 2745732. Its totient is φ = 1830480.

The previous prime is 2288089. The next prime is 2288107. The reversal of 2288105 is 5018822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5018822 = 22509411.

It can be written as a sum of positive squares in 2 ways, for example, as 430336 + 1857769 = 656^2 + 1363^2 .

It is not a de Polignac number, because 2288105 - 24 = 2288089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2288107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228806 + ... + 228815.

It is an arithmetic number, because the mean of its divisors is an integer number (686433).

22288105 is an apocalyptic number.

It is an amenable number.

2288105 is a deficient number, since it is larger than the sum of its proper divisors (457627).

2288105 is an equidigital number, since it uses as much as digits as its factorization.

2288105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457626.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 2288105 is about 1512.6483398332. The cubic root of 2288105 is about 131.7726611820.

The spelling of 2288105 in words is "two million, two hundred eighty-eight thousand, one hundred five".

Divisors: 1 5 457621 2288105