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289038 = 2367719
BaseRepresentation
bin1000110100100001110
3112200111010
41012210032
533222123
610110050
72312451
oct1064416
9480433
10289038
11188182
1211b326
13a1739
1477498
155a993
hex4690e

289038 has 16 divisors (see below), whose sum is σ = 587520. Its totient is φ = 94776.

The previous prime is 289033. The next prime is 289039. The reversal of 289038 is 830982.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 288996 and 289014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43 + ... + 761.

It is an arithmetic number, because the mean of its divisors is an integer number (36720).

2289038 is an apocalyptic number.

289038 is an abundant number, since it is smaller than the sum of its proper divisors (298482).

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

289038 is a wasteful number, since it uses less digits than its factorization.

289038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 289038 is about 537.6225441702. The cubic root of 289038 is about 66.1177878267.

Subtracting from 289038 its product of nonzero digits (3456), we obtain a palindrome (285582).

The spelling of 289038 in words is "two hundred eighty-nine thousand, thirty-eight".

Divisors: 1 2 3 6 67 134 201 402 719 1438 2157 4314 48173 96346 144519 289038