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289116213 = 3254337897
BaseRepresentation
bin10001001110111…
…001000000110101
3202011000121212220
4101032321000311
51043003204323
644404432553
710110306261
oct2116710065
9664017786
10289116213
11139220321
12809a8759
1347b89ba9
142a57d0a1
151a5ae0e3
hex113b9035

289116213 has 8 divisors (see below), whose sum is σ = 385650048. Its totient is φ = 192663264.

The previous prime is 289116211. The next prime is 289116239. The reversal of 289116213 is 312611982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 289116213 - 21 = 289116211 is a prime.

It is a super-2 number, since 2×2891162132 = 167176369238922738, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289116211) 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 7 ways as a sum of consecutive naturals, for example, 11320 + ... + 26577.

It is an arithmetic number, because the mean of its divisors is an integer number (48206256).

Almost surely, 2289116213 is an apocalyptic number.

It is an amenable number.

289116213 is a deficient number, since it is larger than the sum of its proper divisors (96533835).

289116213 is a wasteful number, since it uses less digits than its factorization.

289116213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40443.

The product of its digits is 5184, while the sum is 33.

The square root of 289116213 is about 17003.4176858654. The cubic root of 289116213 is about 661.2375106125.

The spelling of 289116213 in words is "two hundred eighty-nine million, one hundred sixteen thousand, two hundred thirteen".

Divisors: 1 3 2543 7629 37897 113691 96372071 289116213