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13228090 = 254330763
BaseRepresentation
bin110010011101…
…100000111010
3220220001112021
4302131200322
511341244330
61151305054
7220302601
oct62354072
926801467
1013228090
117515507
12451b18a
132981c95
141a84a38
15126467a
hexc9d83a

13228090 has 16 divisors (see below), whose sum is σ = 24365088. Its totient is φ = 5168016.

The previous prime is 13228069. The next prime is 13228097. The reversal of 13228090 is 9082231.

13228090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a house number.

It is not an unprimeable number, because it can be changed into a prime (13228097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14952 + ... + 15811.

It is an arithmetic number, because the mean of its divisors is an integer number (1522818).

Almost surely, 213228090 is an apocalyptic number.

13228090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13228090 is a deficient number, since it is larger than the sum of its proper divisors (11136998).

13228090 is a wasteful number, since it uses less digits than its factorization.

13228090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30813.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 13228090 is about 3637.0441295096. The cubic root of 13228090 is about 236.5006726869.

The spelling of 13228090 in words is "thirteen million, two hundred twenty-eight thousand, ninety".