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40182205 = 572401409
BaseRepresentation
bin1001100101001…
…0000110111101
32210121110121211
42121102012331
540241312310
63553124421
7665354200
oct231220675
983543554
1040182205
1120755538
1211559711
13842b76b
14549d937
1537dac8a
hex26521bd

40182205 has 24 divisors (see below), whose sum is σ = 56368440. Its totient is φ = 27417600.

The previous prime is 40182199. The next prime is 40182217. The reversal of 40182205 is 50228104.

40182205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 24980004 + 15202201 = 4998^2 + 3899^2 .

It is not a de Polignac number, because 40182205 - 211 = 40180157 is a prime.

It is a super-2 number, since 2×401822052 = 3229219197324050, which contains 22 as substring.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 98041 + ... + 98449.

It is an arithmetic number, because the mean of its divisors is an integer number (2348685).

Almost surely, 240182205 is an apocalyptic number.

It is an amenable number.

40182205 is a deficient number, since it is larger than the sum of its proper divisors (16186235).

40182205 is a wasteful number, since it uses less digits than its factorization.

40182205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 40182205 is about 6338.9435239636. The cubic root of 40182205 is about 342.5136798131.

The spelling of 40182205 in words is "forty million, one hundred eighty-two thousand, two hundred five".

Divisors: 1 5 7 35 49 245 401 409 2005 2045 2807 2863 14035 14315 19649 20041 98245 100205 164009 820045 1148063 5740315 8036441 40182205