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40938105 = 3513209939
BaseRepresentation
bin1001110000101…
…0101001111001
32212000212112010
42130022221321
540440004410
64021240133
71004653035
oct234125171
985025463
1040938105
112112144a
1211863049
138634840
1456191c5
1538d9c20
hex270aa79

40938105 has 16 divisors (see below), whose sum is σ = 70539840. Its totient is φ = 20154048.

The previous prime is 40938089. The next prime is 40938109. The reversal of 40938105 is 50183904.

40938105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40938105 - 24 = 40938089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40938109) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 104775 + ... + 105164.

It is an arithmetic number, because the mean of its divisors is an integer number (4408740).

Almost surely, 240938105 is an apocalyptic number.

It is an amenable number.

40938105 is a deficient number, since it is larger than the sum of its proper divisors (29601735).

40938105 is a wasteful number, since it uses less digits than its factorization.

40938105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209960.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 40938105 is about 6398.2892244724. The cubic root of 40938105 is about 344.6481184323.

The spelling of 40938105 in words is "forty million, nine hundred thirty-eight thousand, one hundred five".

Divisors: 1 3 5 13 15 39 65 195 209939 629817 1049695 2729207 3149085 8187621 13646035 40938105