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2228065 = 5763659
BaseRepresentation
bin1000011111111101100001
311012012022221
420133331201
51032244230
6115431041
724636550
oct10377541
94165287
102228065
111291a84
128b5481
136001a8
1441dd97
152e027a
hex21ff61

2228065 has 8 divisors (see below), whose sum is σ = 3055680. Its totient is φ = 1527792.

The previous prime is 2228053. The next prime is 2228077. The reversal of 2228065 is 5608222.

It is an interprime number because it is at equal distance from previous prime (2228053) and next prime (2228077).

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

It is not a de Polignac number, because 2228065 - 217 = 2096993 is a prime.

2228065 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31795 + ... + 31864.

It is an arithmetic number, because the mean of its divisors is an integer number (381960).

22228065 is an apocalyptic number.

It is an amenable number.

2228065 is a deficient number, since it is larger than the sum of its proper divisors (827615).

2228065 is an equidigital number, since it uses as much as digits as its factorization.

2228065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63671.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2228065 is about 1492.6704257806. The cubic root of 2228065 is about 130.6098564589.

The spelling of 2228065 in words is "two million, two hundred twenty-eight thousand, sixty-five".

Divisors: 1 5 7 35 63659 318295 445613 2228065