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9050389 = 54116729
BaseRepresentation
bin100010100001…
…100100010101
3122000210210121
4202201210111
54304103024
6521551541
7136632655
oct42414425
918023717
109050389
115121767
1230455b1
131b4b57a
1412b8365
15bdb8e4
hex8a1915

9050389 has 4 divisors (see below), whose sum is σ = 9067660. Its totient is φ = 9033120.

The previous prime is 9050383. The next prime is 9050413. The reversal of 9050389 is 9830509.

9050389 is digitally balanced in base 3, 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 4765489 + 4284900 = 2183^2 + 2070^2 .

It is a cyclic number.

It is not a de Polignac number, because 9050389 - 29 = 9049877 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9050383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7824 + ... + 8905.

It is an arithmetic number, because the mean of its divisors is an integer number (2266915).

Almost surely, 29050389 is an apocalyptic number.

It is an amenable number.

9050389 is a deficient number, since it is larger than the sum of its proper divisors (17271).

9050389 is a wasteful number, since it uses less digits than its factorization.

9050389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17270.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 9050389 is about 3008.3864445912. The cubic root of 9050389 is about 208.3958576424.

The spelling of 9050389 in words is "nine million, fifty thousand, three hundred eighty-nine".

Divisors: 1 541 16729 9050389