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9885221 = 33729333
BaseRepresentation
bin100101101101…
…011000100101
3200121012222022
4211231120211
510012311341
6551512525
7150010613
oct45553045
920535868
109885221
115641a05
123388745
132081558
1414546b3
15d03e4b
hex96d625

9885221 has 4 divisors (see below), whose sum is σ = 9914892. Its totient is φ = 9855552.

The previous prime is 9885209. The next prime is 9885229. The reversal of 9885221 is 1225889.

9885221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5428900 + 4456321 = 2330^2 + 2111^2 .

It is a cyclic number.

It is not a de Polignac number, because 9885221 - 26 = 9885157 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9885229) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14330 + ... + 15003.

It is an arithmetic number, because the mean of its divisors is an integer number (2478723).

Almost surely, 29885221 is an apocalyptic number.

It is an amenable number.

9885221 is a deficient number, since it is larger than the sum of its proper divisors (29671).

9885221 is a wasteful number, since it uses less digits than its factorization.

9885221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29670.

The product of its digits is 11520, while the sum is 35.

The square root of 9885221 is about 3144.0771300972. The cubic root of 9885221 is about 214.6160155413.

The spelling of 9885221 in words is "nine million, eight hundred eighty-five thousand, two hundred twenty-one".

Divisors: 1 337 29333 9885221