Base | Representation |
---|---|
bin | 11000101011101100… |
… | …01000110001010001 |
3 | 1021012111212122011122 |
4 | 30111312020301101 |
5 | 204114330240441 |
6 | 10030531452025 |
7 | 646245112220 |
oct | 142566106121 |
9 | 37174778148 |
10 | 13251415121 |
11 | 569009534a |
12 | 2699a57015 |
13 | 13324bb549 |
14 | 8d9cd2cb7 |
15 | 52856534b |
hex | 315d88c51 |
13251415121 has 16 divisors (see below), whose sum is σ = 15700646400. Its totient is φ = 10942924608.
The previous prime is 13251415103. The next prime is 13251415159. The reversal of 13251415121 is 12151415231.
It is not a de Polignac number, because 13251415121 - 218 = 13251152977 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (13251415921) 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, 23495 + ... + 164483.
It is an arithmetic number, because the mean of its divisors is an integer number (981290400).
Almost surely, 213251415121 is an apocalyptic number.
It is an amenable number.
13251415121 is a deficient number, since it is larger than the sum of its proper divisors (2449231279).
13251415121 is a wasteful number, since it uses less digits than its factorization.
13251415121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 141488.
The product of its digits is 1200, while the sum is 26.
The spelling of 13251415121 in words is "thirteen billion, two hundred fifty-one million, four hundred fifteen thousand, one hundred twenty-one".
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