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9042289 = 23393143
BaseRepresentation
bin100010011111…
…100101110001
3122000101200121
4202133211301
54303323124
6521450241
7136600234
oct42374561
918011617
109042289
115116673
123040981
131b47989
1412b541b
15bd92e4
hex89f971

9042289 has 4 divisors (see below), whose sum is σ = 9435456. Its totient is φ = 8649124.

The previous prime is 9042251. The next prime is 9042307. The reversal of 9042289 is 9822409.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9042289 - 213 = 9034097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9042239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196549 + ... + 196594.

It is an arithmetic number, because the mean of its divisors is an integer number (2358864).

Almost surely, 29042289 is an apocalyptic number.

It is an amenable number.

9042289 is a deficient number, since it is larger than the sum of its proper divisors (393167).

9042289 is a wasteful number, since it uses less digits than its factorization.

9042289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393166.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 9042289 is about 3007.0399066191. The cubic root of 9042289 is about 208.3336684083. Note that the first 3 decimals are identical.

The spelling of 9042289 in words is "nine million, forty-two thousand, two hundred eighty-nine".

Divisors: 1 23 393143 9042289