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28143110 = 252814311
BaseRepresentation
bin110101101011…
…0111000000110
31221221211002102
41223112320012
524201034420
62443112102
7461132612
oct153267006
957854072
1028143110
1114982376
129512632
135aa4a38
143a48342
15270da75
hex1ad6e06

28143110 has 8 divisors (see below), whose sum is σ = 50657616. Its totient is φ = 11257240.

The previous prime is 28143107. The next prime is 28143127. The reversal of 28143110 is 1134182.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1407146 + ... + 1407165.

It is an arithmetic number, because the mean of its divisors is an integer number (6332202).

Almost surely, 228143110 is an apocalyptic number.

28143110 is a deficient number, since it is larger than the sum of its proper divisors (22514506).

28143110 is a wasteful number, since it uses less digits than its factorization.

28143110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814318.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 28143110 is about 5305.0080113040. The cubic root of 28143110 is about 304.1753590644.

Adding to 28143110 its reverse (1134182), we get a palindrome (29277292).

The spelling of 28143110 in words is "twenty-eight million, one hundred forty-three thousand, one hundred ten".

Divisors: 1 2 5 10 2814311 5628622 14071555 28143110