Search a number
-
+
2104238805 = 35507727631
BaseRepresentation
bin111110101101100…
…0010001011010101
312102122111101222120
41331123002023111
513302141120210
6544445050153
7103100510004
oct17533021325
95378441876
102104238805
1198a873839
124a8856959
13276c43326
1415d670c3b
15c4b03270
hex7d6c22d5

2104238805 has 16 divisors (see below), whose sum is σ = 3367567104. Its totient is φ = 1121999040.

The previous prime is 2104238791. The next prime is 2104238813. The reversal of 2104238805 is 5088324012.

It is a de Polignac number, because none of the positive numbers 2k-2104238805 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62340 + ... + 89970.

It is an arithmetic number, because the mean of its divisors is an integer number (210472944).

Almost surely, 22104238805 is an apocalyptic number.

It is an amenable number.

2104238805 is a deficient number, since it is larger than the sum of its proper divisors (1263328299).

2104238805 is a wasteful number, since it uses less digits than its factorization.

2104238805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32716.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 2104238805 is about 45871.9827890620. The cubic root of 2104238805 is about 1281.4401931260.

The spelling of 2104238805 in words is "two billion, one hundred four million, two hundred thirty-eight thousand, eight hundred five".

Divisors: 1 3 5 15 5077 15231 25385 27631 76155 82893 138155 414465 140282587 420847761 701412935 2104238805