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9042815 = 55413343
BaseRepresentation
bin100010011111…
…101101111111
3122000102102002
4202133231333
54303332230
6521452515
7136601615
oct42375577
918012362
109042815
115117001
12304113b
131b47ca2
1412b56b5
15bd9545
hex89fb7f

9042815 has 8 divisors (see below), whose sum is σ = 10874688. Its totient is φ = 7218720.

The previous prime is 9042797. The next prime is 9042829. The reversal of 9042815 is 5182409.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9042815 - 216 = 8977279 is a prime.

It is a d-powerful number, because it can be written as 97 + 0 + 411 + 215 + 85 + 1 + 5 .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1034 + ... + 4376.

It is an arithmetic number, because the mean of its divisors is an integer number (1359336).

Almost surely, 29042815 is an apocalyptic number.

9042815 is a deficient number, since it is larger than the sum of its proper divisors (1831873).

9042815 is a wasteful number, since it uses less digits than its factorization.

9042815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 9042815 is about 3007.1273667738. The cubic root of 9042815 is about 208.3377079970.

The spelling of 9042815 in words is "nine million, forty-two thousand, eight hundred fifteen".

Divisors: 1 5 541 2705 3343 16715 1808563 9042815