Search a number
-
+
13103138455 = 511503947279
BaseRepresentation
bin11000011010000001…
…00000011010010111
31020211011212101211021
430031000200122113
5203313400412310
610004113422011
7642464560561
oct141500403227
936734771737
1013103138455
11561441a950
12265826a907
13130a873b84
148c4336331
1551a5265da
hex30d020697

13103138455 has 16 divisors (see below), whose sum is σ = 17156966400. Its totient is φ = 9527462560.

The previous prime is 13103138453. The next prime is 13103138459. The reversal of 13103138455 is 55483130131.

It is not a de Polignac number, because 13103138455 - 21 = 13103138453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13103138455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103138453) 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, 253506 + ... + 300784.

It is an arithmetic number, because the mean of its divisors is an integer number (1072310400).

Almost surely, 213103138455 is an apocalyptic number.

13103138455 is a deficient number, since it is larger than the sum of its proper divisors (4053827945).

13103138455 is a wasteful number, since it uses less digits than its factorization.

13103138455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52334.

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 13103138455 its reverse (55483130131), we get a palindrome (68586268586).

The spelling of 13103138455 in words is "thirteen billion, one hundred three million, one hundred thirty-eight thousand, four hundred fifty-five".

Divisors: 1 5 11 55 5039 25195 47279 55429 236395 277145 520069 2600345 238238881 1191194405 2620627691 13103138455