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16104105 = 325894021
BaseRepresentation
bin111101011011…
…101010101001
31010022011200100
4331123222221
513110312410
61333100013
7253611513
oct75335251
933264610
1016104105
1190aa286
125487609
13344b074
1421d2bb3
1516318c0
hexf5baa9

16104105 has 24 divisors (see below), whose sum is σ = 28234440. Its totient is φ = 8490240.

The previous prime is 16104079. The next prime is 16104107. The reversal of 16104105 is 50140161.

It can be written as a sum of positive squares in 4 ways, for example, as 207936 + 15896169 = 456^2 + 3987^2 .

It is not a de Polignac number, because 16104105 - 26 = 16104041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16104107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1995 + ... + 6015.

It is an arithmetic number, because the mean of its divisors is an integer number (1176435).

Almost surely, 216104105 is an apocalyptic number.

16104105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16104105 is a deficient number, since it is larger than the sum of its proper divisors (12130335).

16104105 is a wasteful number, since it uses less digits than its factorization.

16104105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121 (or 4118 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 16104105 is about 4012.9920259079. The cubic root of 16104105 is about 252.5295459332.

Adding to 16104105 its reverse (50140161), we get a palindrome (66244266).

The spelling of 16104105 in words is "sixteen million, one hundred four thousand, one hundred five".

Divisors: 1 3 5 9 15 45 89 267 445 801 1335 4005 4021 12063 20105 36189 60315 180945 357869 1073607 1789345 3220821 5368035 16104105