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2287109 = 11533923
BaseRepresentation
bin1000101110011000000101
311022012022202
420232120011
51041141414
6121004245
725303646
oct10563005
94265282
102287109
111322380
12923685
13621026
144376cd
153029de
hex22e605

2287109 has 8 divisors (see below), whose sum is σ = 2542752. Its totient is φ = 2039440.

The previous prime is 2287099. The next prime is 2287111. The reversal of 2287109 is 9017822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2287109 - 24 = 2287093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2287199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1379 + ... + 2544.

It is an arithmetic number, because the mean of its divisors is an integer number (317844).

22287109 is an apocalyptic number.

It is an amenable number.

2287109 is a deficient number, since it is larger than the sum of its proper divisors (255643).

2287109 is a wasteful number, since it uses less digits than its factorization.

2287109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3987.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2287109 is about 1512.3190800886. The cubic root of 2287109 is about 131.7535384263.

It can be divided in two parts, 228 and 7109, that added together give a palindrome (7337).

The spelling of 2287109 in words is "two million, two hundred eighty-seven thousand, one hundred nine".

Divisors: 1 11 53 583 3923 43153 207919 2287109