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289144 = 2347769
BaseRepresentation
bin1000110100101111000
3112200122001
41012211320
533223034
610110344
72312662
oct1064570
9480561
10289144
11188269
1211b3b4
13a17bb
1477532
155aa14
hex46978

289144 has 16 divisors (see below), whose sum is σ = 554400. Its totient is φ = 141312.

The previous prime is 289141. The next prime is 289151. The reversal of 289144 is 441982.

It can be divided in two parts, 289 and 144, that multiplied together give a triangular number (41616 = T288).

289144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289141) 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, 9 + ... + 760.

It is an arithmetic number, because the mean of its divisors is an integer number (34650).

2289144 is an apocalyptic number.

It is an amenable number.

289144 is a deficient number, since it is larger than the sum of its proper divisors (265256).

289144 is a wasteful number, since it uses less digits than its factorization.

289144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 818 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 289144 is about 537.7211173090. The cubic root of 289144 is about 66.1258693811.

The spelling of 289144 in words is "two hundred eighty-nine thousand, one hundred forty-four".

Divisors: 1 2 4 8 47 94 188 376 769 1538 3076 6152 36143 72286 144572 289144