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28714806 = 2321595267
BaseRepresentation
bin110110110001…
…0011100110110
32000000212022100
41231202130312
524322333211
62503242530
7466033431
oct155423466
960025270
1028714806
111523294a
129749446
135c45013
143b56818
1527c3156
hex1b62736

28714806 has 12 divisors (see below), whose sum is σ = 62215452. Its totient is φ = 9571596.

The previous prime is 28714783. The next prime is 28714831. The reversal of 28714806 is 60841782.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 797616 + ... + 797651.

It is an arithmetic number, because the mean of its divisors is an integer number (5184621).

Almost surely, 228714806 is an apocalyptic number.

28714806 is an abundant number, since it is smaller than the sum of its proper divisors (33500646).

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

28714806 is a wasteful number, since it uses less digits than its factorization.

28714806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595275 (or 1595272 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 28714806 is about 5358.6197849819. The cubic root of 28714806 is about 306.2212292283.

The spelling of 28714806 in words is "twenty-eight million, seven hundred fourteen thousand, eight hundred six".

Divisors: 1 2 3 6 9 18 1595267 3190534 4785801 9571602 14357403 28714806