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1045105 = 5209021
BaseRepresentation
bin11111111001001110001
31222002121121
43333021301
5231420410
634222241
711611645
oct3771161
91862547
101045105
11654226
12424981
132a7909
141d2c25
151599da
hexff271

1045105 has 4 divisors (see below), whose sum is σ = 1254132. Its totient is φ = 836080.

The previous prime is 1045081. The next prime is 1045111. The reversal of 1045105 is 5015401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5015401 = 17928019.

It can be written as a sum of positive squares in 2 ways, for example, as 277729 + 767376 = 527^2 + 876^2 .

It is not a de Polignac number, because 1045105 - 213 = 1036913 is a prime.

It is a super-2 number, since 2×10451052 = 2184488922050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 104506 + ... + 104515.

It is an arithmetic number, because the mean of its divisors is an integer number (313533).

21045105 is an apocalyptic number.

It is an amenable number.

1045105 is a deficient number, since it is larger than the sum of its proper divisors (209027).

1045105 is an equidigital number, since it uses as much as digits as its factorization.

1045105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209026.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1045105 is about 1022.3037709018. The cubic root of 1045105 is about 101.4814448355.

The spelling of 1045105 in words is "one million, forty-five thousand, one hundred five".

Divisors: 1 5 209021 1045105