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289452 = 22324121
BaseRepresentation
bin1000110101010101100
3112201001110
41012222230
533230302
610112020
72313612
oct1065254
9481043
10289452
11188519
1211b610
13a1997
14776b2
155ab6c
hex46aac

289452 has 12 divisors (see below), whose sum is σ = 675416. Its totient is φ = 96480.

The previous prime is 289439. The next prime is 289453. The reversal of 289452 is 254982.

It is a tau number, because it is divible by the number of its divisors (12).

It is a d-powerful number, because it can be written as 2 + 84 + 45 + 94 + 56 + 218 .

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (289453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12049 + ... + 12072.

2289452 is an apocalyptic number.

It is an amenable number.

289452 is an abundant number, since it is smaller than the sum of its proper divisors (385964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289452 is a wasteful number, since it uses less digits than its factorization.

289452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24128 (or 24126 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 289452 is about 538.0074348929. The cubic root of 289452 is about 66.1493404317.

It can be divided in two parts, 289 and 452, that added together give a triangular number (741 = T38).

The spelling of 289452 in words is "two hundred eighty-nine thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 24121 48242 72363 96484 144726 289452