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2287485 = 32550833
BaseRepresentation
bin1000101110011101111101
311022012211200
420232131331
51041144420
6121010113
725305024
oct10563575
94265750
102287485
111322692
12923939
13621255
144378bb
15302b90
hex22e77d

2287485 has 12 divisors (see below), whose sum is σ = 3965052. Its totient is φ = 1219968.

The previous prime is 2287477. The next prime is 2287487. The reversal of 2287485 is 5847822.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 974169 + 1313316 = 987^2 + 1146^2 .

It is not a de Polignac number, because 2287485 - 23 = 2287477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2287487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25372 + ... + 25461.

It is an arithmetic number, because the mean of its divisors is an integer number (330421).

22287485 is an apocalyptic number.

It is an amenable number.

2287485 is a deficient number, since it is larger than the sum of its proper divisors (1677567).

2287485 is a wasteful number, since it uses less digits than its factorization.

2287485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50844 (or 50841 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 2287485 is about 1512.4433873703. The cubic root of 2287485 is about 131.7607581108.

It can be divided in two parts, 2287 and 485, that added together give a palindrome (2772).

The spelling of 2287485 in words is "two million, two hundred eighty-seven thousand, four hundred eighty-five".

Divisors: 1 3 5 9 15 45 50833 152499 254165 457497 762495 2287485