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289000369 = 741285767
BaseRepresentation
bin10001001110011…
…100101110110001
3202010210201222101
4101032130232301
51042441002434
644402140401
710106314450
oct2116345661
9663721871
10289000369
11139151289
1280951701
1347b49248
142a54cb97
151a589b14
hex1139cbb1

289000369 has 4 divisors (see below), whose sum is σ = 330286144. Its totient is φ = 247714596.

The previous prime is 289000367. The next prime is 289000373. The reversal of 289000369 is 963000982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 963000982 = 2481500491.

It is a cyclic number.

It is not a de Polignac number, because 289000369 - 21 = 289000367 is a prime.

It is a super-2 number, since 2×2890003692 = 167042426564272322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289000363) 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, 20642877 + ... + 20642890.

It is an arithmetic number, because the mean of its divisors is an integer number (82571536).

Almost surely, 2289000369 is an apocalyptic number.

It is an amenable number.

289000369 is a deficient number, since it is larger than the sum of its proper divisors (41285775).

289000369 is an equidigital number, since it uses as much as digits as its factorization.

289000369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41285774.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 289000369 is about 17000.0108529377. The cubic root of 289000369 is about 661.1491832343.

The spelling of 289000369 in words is "two hundred eighty-nine million, three hundred sixty-nine", and thus it is an aban number.

Divisors: 1 7 41285767 289000369