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22095005 = 519212241
BaseRepresentation
bin101010001001…
…0010010011101
31112120112122112
41110102102131
521124020010
62105323405
7355542632
oct124222235
945515575
1022095005
1111521339
127496565
134767b8a
142d12189
151e16a05
hex151249d

22095005 has 12 divisors (see below), whose sum is σ = 27985212. Its totient is φ = 16744320.

The previous prime is 22095001. The next prime is 22095049. The reversal of 22095005 is 50059022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6775609 + 15319396 = 2603^2 + 3914^2 .

It is not a de Polignac number, because 22095005 - 22 = 22095001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22095001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4316 + ... + 7925.

It is an arithmetic number, because the mean of its divisors is an integer number (2332101).

Almost surely, 222095005 is an apocalyptic number.

It is an amenable number.

22095005 is a deficient number, since it is larger than the sum of its proper divisors (5890207).

22095005 is a wasteful number, since it uses less digits than its factorization.

22095005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12284 (or 12265 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 22095005 is about 4700.5324166524. The cubic root of 22095005 is about 280.6066989221.

The spelling of 22095005 in words is "twenty-two million, ninety-five thousand, five".

Divisors: 1 5 19 95 361 1805 12241 61205 232579 1162895 4419001 22095005