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289930244 = 22200336187
BaseRepresentation
bin10001010001111…
…111110000000100
3202012112222112012
4101101333300010
51043210231434
644434113352
710120236452
oct2121776004
9665488465
10289930244
1113972697a
128111b858
13480b3576
142a7119d2
151a6c03ce
hex1147fc04

289930244 has 12 divisors (see below), whose sum is σ = 507645264. Its totient is φ = 144888744.

The previous prime is 289930241. The next prime is 289930283. The reversal of 289930244 is 442039982.

It is not an unprimeable number, because it can be changed into a prime (289930241) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10082 + ... + 26105.

It is an arithmetic number, because the mean of its divisors is an integer number (42303772).

Almost surely, 2289930244 is an apocalyptic number.

It is an amenable number.

289930244 is a deficient number, since it is larger than the sum of its proper divisors (217715020).

289930244 is a wasteful number, since it uses less digits than its factorization.

289930244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38194 (or 38192 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 289930244 is about 17027.3381360681. The cubic root of 289930244 is about 661.8575190118.

The spelling of 289930244 in words is "two hundred eighty-nine million, nine hundred thirty thousand, two hundred forty-four".

Divisors: 1 2 4 2003 4006 8012 36187 72374 144748 72482561 144965122 289930244