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28141068 = 22311320753
BaseRepresentation
bin110101101011…
…0011000001100
31221221201021210
41223112120030
524201003233
62443054420
7461123634
oct153263014
957851253
1028141068
111498088a
129511410
135aa3b27
143a476c4
15270d163
hex1ad660c

28141068 has 24 divisors (see below), whose sum is σ = 66246768. Its totient is φ = 9296896.

The previous prime is 28141051. The next prime is 28141073. The reversal of 28141068 is 86014182.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9021 + ... + 11732.

It is an arithmetic number, because the mean of its divisors is an integer number (2760282).

Almost surely, 228141068 is an apocalyptic number.

It is an amenable number.

28141068 is an abundant number, since it is smaller than the sum of its proper divisors (38105700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28141068 is a wasteful number, since it uses less digits than its factorization.

28141068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20873 (or 20871 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 28141068 is about 5304.8155481600. The cubic root of 28141068 is about 304.1680021292.

The spelling of 28141068 in words is "twenty-eight million, one hundred forty-one thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 113 226 339 452 678 1356 20753 41506 62259 83012 124518 249036 2345089 4690178 7035267 9380356 14070534 28141068