Search a number
-
+
13784301885 = 354197231067
BaseRepresentation
bin11001101011001101…
…11100000100111101
31022120122121002101110
430311212330010331
5211212240130020
610155445232233
7665405430024
oct146546740475
938518532343
1013784301885
115933974032
122808402679
1313b8a19563
1494a9a98bb
1555a2278e0
hex3359bc13d

13784301885 has 32 divisors (see below), whose sum is σ = 22825821312. Its totient is φ = 7098347520.

The previous prime is 13784301877. The next prime is 13784301889. The reversal of 13784301885 is 58810348731.

It is a happy number.

It is not a de Polignac number, because 13784301885 - 23 = 13784301877 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13784301889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55879 + ... + 175188.

It is an arithmetic number, because the mean of its divisors is an integer number (713306916).

Almost surely, 213784301885 is an apocalyptic number.

13784301885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13784301885 is a deficient number, since it is larger than the sum of its proper divisors (9041519427).

13784301885 is a wasteful number, since it uses less digits than its factorization.

13784301885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231213.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 13784301885 in words is "thirteen billion, seven hundred eighty-four million, three hundred one thousand, eight hundred eighty-five".

Divisors: 1 3 5 15 41 97 123 205 291 485 615 1455 3977 11931 19885 59655 231067 693201 1155335 3466005 9473747 22413499 28421241 47368735 67240497 112067495 142106205 336202485 918953459 2756860377 4594767295 13784301885