Base | Representation |
---|---|
bin | 11000100101101111… |
… | …01011010100010011 |
3 | 1021002000221000211112 |
4 | 30102313223110103 |
5 | 204014040041443 |
6 | 10021545403535 |
7 | 645100534436 |
oct | 142267532423 |
9 | 37060830745 |
10 | 13201487123 |
11 | 5664993740 |
12 | 26851995ab |
13 | 1325059b56 |
14 | 8d341781d |
15 | 523ea1b18 |
hex | 312deb513 |
13201487123 has 8 divisors (see below), whose sum is σ = 15027780096. Its totient is φ = 11479553800.
The previous prime is 13201487111. The next prime is 13201487129. The reversal of 13201487123 is 32178410231.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13201487123 - 212 = 13201483027 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 13201487123.
It is not an unprimeable number, because it can be changed into a prime (13201487129) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26089643 + ... + 26090148.
It is an arithmetic number, because the mean of its divisors is an integer number (1878472512).
Almost surely, 213201487123 is an apocalyptic number.
13201487123 is a deficient number, since it is larger than the sum of its proper divisors (1826292973).
13201487123 is a wasteful number, since it uses less digits than its factorization.
13201487123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52179825.
The product of its (nonzero) digits is 8064, while the sum is 32.
Adding to 13201487123 its reverse (32178410231), we get a palindrome (45379897354).
The spelling of 13201487123 in words is "thirteen billion, two hundred one million, four hundred eighty-seven thousand, one hundred twenty-three".
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