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289193841 = 3389151797
BaseRepresentation
bin10001001111001…
…011111101110001
3202011011120101000
4101033023331301
51043013200331
644410232213
710111051506
oct2117137561
9664146330
10289193841
11139273682
1280a25669
1347bb6321
142a59d4ad
151a5c70e6
hex113cbf71

289193841 has 32 divisors (see below), whose sum is σ = 436665600. Its totient is φ = 189129600.

The previous prime is 289193831. The next prime is 289193899. The reversal of 289193841 is 148391982.

It is not a de Polignac number, because 289193841 - 217 = 289062769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289193831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362455 + ... + 363251.

It is an arithmetic number, because the mean of its divisors is an integer number (13645800).

Almost surely, 2289193841 is an apocalyptic number.

It is an amenable number.

289193841 is a deficient number, since it is larger than the sum of its proper divisors (147471759).

289193841 is a wasteful number, since it uses less digits than its factorization.

289193841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046 (or 1040 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 289193841 is about 17005.7002502102. The cubic root of 289193841 is about 661.2966863001.

The spelling of 289193841 in words is "two hundred eighty-nine million, one hundred ninety-three thousand, eight hundred forty-one".

Divisors: 1 3 9 27 89 151 267 453 797 801 1359 2391 2403 4077 7173 13439 21519 40317 70933 120347 120951 212799 361041 362853 638397 1083123 1915191 3249369 10710883 32132649 96397947 289193841