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289102 = 21117773
BaseRepresentation
bin1000110100101001110
3112200120111
41012211032
533222402
610110234
72312602
oct1064516
9480514
10289102
11188230
1211b37a
13a1788
1477502
155a9d7
hex4694e

289102 has 16 divisors (see below), whose sum is σ = 501552. Its totient is φ = 123520.

The previous prime is 289099. The next prime is 289103. The reversal of 289102 is 201982.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289103) 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, 13 + ... + 760.

It is an arithmetic number, because the mean of its divisors is an integer number (31347).

2289102 is an apocalyptic number.

289102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

289102 is a deficient number, since it is larger than the sum of its proper divisors (212450).

289102 is a wasteful number, since it uses less digits than its factorization.

289102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 289102 is about 537.6820621892. The cubic root of 289102 is about 66.1226674920.

The spelling of 289102 in words is "two hundred eighty-nine thousand, one hundred two".

Divisors: 1 2 11 17 22 34 187 374 773 1546 8503 13141 17006 26282 144551 289102