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28114894 = 237379931
BaseRepresentation
bin110101100111…
…1111111001110
31221220101101101
41223033333032
524144134034
62442333314
7460654423
oct153177716
957811341
1028114894
1114963155
1294ba23a
135a94c42
143a3bd4a
152705514
hex1acffce

28114894 has 8 divisors (see below), whose sum is σ = 43312248. Its totient is φ = 13677480.

The previous prime is 28114873. The next prime is 28114897. The reversal of 28114894 is 49841182.

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

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28114897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189892 + ... + 190039.

It is an arithmetic number, because the mean of its divisors is an integer number (5414031).

Almost surely, 228114894 is an apocalyptic number.

28114894 is a deficient number, since it is larger than the sum of its proper divisors (15197354).

28114894 is a wasteful number, since it uses less digits than its factorization.

28114894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379970.

The product of its digits is 18432, while the sum is 37.

The square root of 28114894 is about 5302.3479704750. The cubic root of 28114894 is about 304.0736706841.

The spelling of 28114894 in words is "twenty-eight million, one hundred fourteen thousand, eight hundred ninety-four".

Divisors: 1 2 37 74 379931 759862 14057447 28114894