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2280005 = 57135011
BaseRepresentation
bin1000101100101001000101
311021211120122
420230221011
51040430010
6120511325
725244150
oct10545105
94254518
102280005
111318002
1291b545
1361aa20
14434c97
15300855
hex22ca45

2280005 has 16 divisors (see below), whose sum is σ = 3368064. Its totient is φ = 1442880.

The previous prime is 2279993. The next prime is 2280011. The reversal of 2280005 is 5000822.

It is a happy number.

It is not a de Polignac number, because 2280005 - 28 = 2279749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2051 + ... + 2960.

It is an arithmetic number, because the mean of its divisors is an integer number (210504).

22280005 is an apocalyptic number.

It is an amenable number.

2280005 is a deficient number, since it is larger than the sum of its proper divisors (1088059).

2280005 is a wasteful number, since it uses less digits than its factorization.

2280005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2280005 is about 1509.9685427187. The cubic root of 2280005 is about 131.6169835159.

Adding to 2280005 its reverse (5000822), we get a palindrome (7280827).

The spelling of 2280005 in words is "two million, two hundred eighty thousand, five".

Divisors: 1 5 7 13 35 65 91 455 5011 25055 35077 65143 175385 325715 456001 2280005