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2282287 = 75712
BaseRepresentation
bin1000101101001100101111
311021221201011
420231030233
51041013122
6120530051
725253620
oct10551457
94257634
102282287
111319797
12920927
1361ba87
14435a47
15301377
hex22d32f

2282287 has 6 divisors (see below), whose sum is σ = 2612904. Its totient is φ = 1952820.

The previous prime is 2282281. The next prime is 2282303. The reversal of 2282287 is 7822822.

It is a happy number.

It is not a de Polignac number, because 2282287 - 219 = 1757999 is a prime.

2282287 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2282281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3712 + ... + 4282.

It is an arithmetic number, because the mean of its divisors is an integer number (435484).

22282287 is an apocalyptic number.

2282287 is a deficient number, since it is larger than the sum of its proper divisors (330617).

2282287 is an frugal number, since it uses more digits than its factorization.

2282287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 578 counting only the distinct ones).

The product of its digits is 7168, while the sum is 31.

The square root of 2282287 is about 1510.7239986179. The cubic root of 2282287 is about 131.6608795904.

Multiplying 2282287 by its product of digits (7168), we get a square (16359433216 = 1279042).

The spelling of 2282287 in words is "two million, two hundred eighty-two thousand, two hundred eighty-seven".

Divisors: 1 7 571 3997 326041 2282287