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9000404 = 227321443
BaseRepresentation
bin100010010101…
…010111010100
3121221021020022
4202111113110
54301003104
6520524312
7136334150
oct42252724
917837208
109000404
115098156
123020698
131b318aa
1412a4060
15bcbbbe
hex8955d4

9000404 has 12 divisors (see below), whose sum is σ = 18000864. Its totient is φ = 3857304.

The previous prime is 9000403. The next prime is 9000427. The reversal of 9000404 is 4040009.

9000404 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9000403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160694 + ... + 160749.

It is an arithmetic number, because the mean of its divisors is an integer number (1500072).

Almost surely, 29000404 is an apocalyptic number.

It is an amenable number.

9000404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9000404 is a wasteful number, since it uses less digits than its factorization.

9000404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321454 (or 321452 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 9000404 is about 3000.0673325777. The cubic root of 9000404 is about 208.0114946803.

The spelling of 9000404 in words is "nine million, four hundred four", and thus it is an aban number.

Divisors: 1 2 4 7 14 28 321443 642886 1285772 2250101 4500202 9000404