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289092 = 22324091
BaseRepresentation
bin1000110100101000100
3112200120010
41012211010
533222332
610110220
72312556
oct1064504
9480503
10289092
11188221
1211b370
13a177b
14774d6
155a9cc
hex46944

289092 has 12 divisors (see below), whose sum is σ = 674576. Its totient is φ = 96360.

The previous prime is 289067. The next prime is 289099. The reversal of 289092 is 290982.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 289092.

It is not an unprimeable number, because it can be changed into a prime (289099) by changing a digit.

289092 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12034 + ... + 12057.

2289092 is an apocalyptic number.

It is an amenable number.

289092 is an abundant number, since it is smaller than the sum of its proper divisors (385484).

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

289092 is a wasteful number, since it uses less digits than its factorization.

289092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24098 (or 24096 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 289092 is about 537.6727629330. The cubic root of 289092 is about 66.1219050918.

The spelling of 289092 in words is "two hundred eighty-nine thousand, ninety-two".

Divisors: 1 2 3 4 6 12 24091 48182 72273 96364 144546 289092