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2285289 = 32318191
BaseRepresentation
bin1000101101111011101001
311022002211100
420231323221
51041112124
6120552013
725265436
oct10557351
94262740
102285289
111320a76
12922609
13620256
14436b8d
153021c9
hex22dee9

2285289 has 12 divisors (see below), whose sum is σ = 3407872. Its totient is φ = 1474200.

The previous prime is 2285279. The next prime is 2285291. The reversal of 2285289 is 9825822.

It is not a de Polignac number, because 2285289 - 24 = 2285273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2285219) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3817 + ... + 4374.

22285289 is an apocalyptic number.

It is an amenable number.

2285289 is a deficient number, since it is larger than the sum of its proper divisors (1122583).

2285289 is a wasteful number, since it uses less digits than its factorization.

2285289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8228 (or 8225 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 2285289 is about 1511.7172354644. The cubic root of 2285289 is about 131.7185808920.

The spelling of 2285289 in words is "two million, two hundred eighty-five thousand, two hundred eighty-nine".

Divisors: 1 3 9 31 93 279 8191 24573 73719 253921 761763 2285289