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13227890 = 2513971049
BaseRepresentation
bin110010011101…
…011101110010
3220220001020212
4302131131302
511341243030
61151304122
7220302164
oct62353562
926801225
1013227890
117515345
12451b042
132981b70
141a84934
151264595
hexc9d772

13227890 has 32 divisors (see below), whose sum is σ = 25930800. Its totient is φ = 4829184.

The previous prime is 13227889. The next prime is 13227901. The reversal of 13227890 is 9872231.

It can be written as a sum of positive squares in 8 ways, for example, as 5900041 + 7327849 = 2429^2 + 2707^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12086 + ... + 13134.

Almost surely, 213227890 is an apocalyptic number.

13227890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13227890 is a deficient number, since it is larger than the sum of its proper divisors (12702910).

13227890 is a wasteful number, since it uses less digits than its factorization.

13227890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 13227890 is about 3637.0166345509. The cubic root of 13227890 is about 236.4994807695.

The spelling of 13227890 in words is "thirteen million, two hundred twenty-seven thousand, eight hundred ninety".

Divisors: 1 2 5 10 13 26 65 97 130 194 485 970 1049 1261 2098 2522 5245 6305 10490 12610 13637 27274 68185 101753 136370 203506 508765 1017530 1322789 2645578 6613945 13227890