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9005105 = 51801021
BaseRepresentation
bin100010010110…
…100000110001
3121221111200102
4202112200301
54301130410
6521002145
7136353644
oct42264061
917844612
109005105
1150a073a
123023355
131b33a85
1412a5a5b
15bcd2a5
hex896831

9005105 has 4 divisors (see below), whose sum is σ = 10806132. Its totient is φ = 7204080.

The previous prime is 9005099. The next prime is 9005119. The reversal of 9005105 is 5015009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5015009 = 15113319.

It can be written as a sum of positive squares in 2 ways, for example, as 6697744 + 2307361 = 2588^2 + 1519^2 .

It is not a de Polignac number, because 9005105 - 24 = 9005089 is a prime.

It is a super-2 number, since 2×90051052 = 162183832122050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900506 + ... + 900515.

It is an arithmetic number, because the mean of its divisors is an integer number (2701533).

Almost surely, 29005105 is an apocalyptic number.

It is an amenable number.

9005105 is a deficient number, since it is larger than the sum of its proper divisors (1801027).

9005105 is a wasteful number, since it uses less digits than its factorization.

9005105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801026.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 9005105 is about 3000.8507127146. The cubic root of 9005105 is about 208.0477038637.

The spelling of 9005105 in words is "nine million, five thousand, one hundred five".

Divisors: 1 5 1801021 9005105