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28834311 = 311873767
BaseRepresentation
bin110110111111…
…1101000000111
32000020221020110
41231333220013
524340144221
62510004103
7500042022
oct155775007
960227213
1028834311
1115304710
1297a6633
135c8752c
143b881b9
1527e8776
hex1b7fa07

28834311 has 8 divisors (see below), whose sum is σ = 41940864. Its totient is φ = 17475320.

The previous prime is 28834297. The next prime is 28834313. The reversal of 28834311 is 11343882.

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

It is a cyclic number.

It is not a de Polignac number, because 28834311 - 29 = 28833799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28834313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436851 + ... + 436916.

It is an arithmetic number, because the mean of its divisors is an integer number (5242608).

Almost surely, 228834311 is an apocalyptic number.

28834311 is a deficient number, since it is larger than the sum of its proper divisors (13106553).

28834311 is a wasteful number, since it uses less digits than its factorization.

28834311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873781.

The product of its digits is 4608, while the sum is 30.

The square root of 28834311 is about 5369.7589331366. The cubic root of 28834311 is about 306.6454507744.

The spelling of 28834311 in words is "twenty-eight million, eight hundred thirty-four thousand, three hundred eleven".

Divisors: 1 3 11 33 873767 2621301 9611437 28834311