Base | Representation |
---|---|
bin | 11000011010000011… |
… | …00101011001110010 |
3 | 1020211012101202110110 |
4 | 30031001211121302 |
5 | 203313433433132 |
6 | 10004123442150 |
7 | 642500145465 |
oct | 141501453162 |
9 | 36735352413 |
10 | 13103421042 |
11 | 56145a3198 |
12 | 2658386356 |
13 | 130a94269a |
14 | 8c43ab2dc |
15 | 51a5801cc |
hex | 30d065672 |
13103421042 has 32 divisors (see below), whose sum is σ = 26499257280. Its totient is φ = 4319179200.
The previous prime is 13103420959. The next prime is 13103421047. The reversal of 13103421042 is 24012430131.
It is not an unprimeable number, because it can be changed into a prime (13103421047) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489333 + ... + 515415.
It is an arithmetic number, because the mean of its divisors is an integer number (828101790).
Almost surely, 213103421042 is an apocalyptic number.
13103421042 is an abundant number, since it is smaller than the sum of its proper divisors (13395836238).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13103421042 is a wasteful number, since it uses less digits than its factorization.
13103421042 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27018.
The product of its (nonzero) digits is 576, while the sum is 21.
Adding to 13103421042 its reverse (24012430131), we get a palindrome (37115851173).
It can be divided in two parts, 131034 and 21042, that added together give a triangular number (152076 = T551).
The spelling of 13103421042 in words is "thirteen billion, one hundred three million, four hundred twenty-one thousand, forty-two".
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