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40902105 = 359772791
BaseRepresentation
bin1001110000000…
…1110111011001
32211222001010210
42130001313121
540432331410
64020401333
71004443056
oct234016731
984861123
1040902105
11210a73a2
1211846249
13862133a
14560a02d
1538ce220
hex2701dd9

40902105 has 16 divisors (see below), whose sum is σ = 65533824. Its totient is φ = 21784320.

The previous prime is 40902067. The next prime is 40902107. The reversal of 40902105 is 50120904.

40902105 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 40902105 - 214 = 40885721 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40902107) 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, 13260 + ... + 16050.

It is an arithmetic number, because the mean of its divisors is an integer number (4095864).

Almost surely, 240902105 is an apocalyptic number.

It is an amenable number.

40902105 is a deficient number, since it is larger than the sum of its proper divisors (24631719).

40902105 is a wasteful number, since it uses less digits than its factorization.

40902105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3776.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 40902105 is about 6395.4753537169. The cubic root of 40902105 is about 344.5470636738.

The spelling of 40902105 in words is "forty million, nine hundred two thousand, one hundred five".

Divisors: 1 3 5 15 977 2791 2931 4885 8373 13955 14655 41865 2726807 8180421 13634035 40902105