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289051112 = 2378216287
BaseRepresentation
bin10001001110101…
…001000111101000
3202010220022120202
4101032221013220
51042444113422
644403211332
710106615420
oct2116510750
9663808522
10289051112
11139186419
1280976b48
1347b6637c
142a563480
151a599b92
hex113a91e8

289051112 has 32 divisors (see below), whose sum is σ = 620248320. Its totient is φ = 123708480.

The previous prime is 289051109. The next prime is 289051151. The reversal of 289051112 is 211150982.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42833 + ... + 49119.

It is an arithmetic number, because the mean of its divisors is an integer number (19382760).

Almost surely, 2289051112 is an apocalyptic number.

It is an amenable number.

289051112 is an abundant number, since it is smaller than the sum of its proper divisors (331197208).

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

289051112 is a wasteful number, since it uses less digits than its factorization.

289051112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7121 (or 7117 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 289051112 is about 17001.5032276561. The cubic root of 289051112 is about 661.1878760681.

The spelling of 289051112 in words is "two hundred eighty-nine million, fifty-one thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 821 1642 3284 5747 6287 6568 11494 12574 22988 25148 44009 45976 50296 88018 176036 352072 5161627 10323254 20646508 36131389 41293016 72262778 144525556 289051112