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28826870 = 2529107929
BaseRepresentation
bin110110111110…
…1110011110110
32000020120000212
41231331303312
524334424440
62505505422
7500011232
oct155756366
960216025
1028826870
11152aa066
1297a2272
135c84027
143b855c2
1527e6465
hex1b7dcf6

28826870 has 32 divisors (see below), whose sum is σ = 54237600. Its totient is φ = 11017216.

The previous prime is 28826851. The next prime is 28826873. The reversal of 28826870 is 7862882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28826873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30566 + ... + 31494.

It is an arithmetic number, because the mean of its divisors is an integer number (1694925).

Almost surely, 228826870 is an apocalyptic number.

28826870 is a deficient number, since it is larger than the sum of its proper divisors (25410730).

28826870 is a wasteful number, since it uses less digits than its factorization.

28826870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072.

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 28826870 is about 5369.0660267872. The cubic root of 28826870 is about 306.6190708007.

The spelling of 28826870 in words is "twenty-eight million, eight hundred twenty-six thousand, eight hundred seventy".

Divisors: 1 2 5 10 29 58 107 145 214 290 535 929 1070 1858 3103 4645 6206 9290 15515 26941 31030 53882 99403 134705 198806 269410 497015 994030 2882687 5765374 14413435 28826870