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289030 = 2574129
BaseRepresentation
bin1000110100100000110
3112200110211
41012210012
533222110
610110034
72312440
oct1064406
9480424
10289030
11188175
1211b31a
13a1731
1477490
155a98a
hex46906

289030 has 16 divisors (see below), whose sum is σ = 594720. Its totient is φ = 99072.

The previous prime is 289021. The next prime is 289031. The reversal of 289030 is 30982.

It is a nialpdrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 288992 and 289010.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1995 + ... + 2134.

It is an arithmetic number, because the mean of its divisors is an integer number (37170).

2289030 is an apocalyptic number.

289030 is an abundant number, since it is smaller than the sum of its proper divisors (305690).

It is a weird number, because it is abundant, but not a pseudoperfect number.

289030 is a wasteful number, since it uses less digits than its factorization.

289030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 289030 is about 537.6151039545. The cubic root of 289030 is about 66.1171778179.

The spelling of 289030 in words is "two hundred eighty-nine thousand, thirty".

Divisors: 1 2 5 7 10 14 35 70 4129 8258 20645 28903 41290 57806 144515 289030