Base | Representation |
---|---|
bin | 11010110010110001… |
… | …110001100001100011 |
3 | 2202020222022120212122 |
4 | 122302301301201203 |
5 | 432404403234011 |
6 | 21114423414455 |
7 | 2035633063244 |
oct | 326261614143 |
9 | 82228276778 |
10 | 28769196131 |
11 | 11223508955 |
12 | 56aa8b442b |
13 | 29363a6aa0 |
14 | 156cbbaccb |
15 | b35a563db |
hex | 6b2c71863 |
28769196131 has 8 divisors (see below), whose sum is σ = 30983530704. Its totient is φ = 26555050080.
The previous prime is 28769196119. The next prime is 28769196149. The reversal of 28769196131 is 13169196782.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-28769196131 is a prime.
It is a super-2 number, since 2×287691961312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (28769195131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551696 + ... + 601586.
It is an arithmetic number, because the mean of its divisors is an integer number (3872941338).
Almost surely, 228769196131 is an apocalyptic number.
28769196131 is a deficient number, since it is larger than the sum of its proper divisors (2214334573).
28769196131 is a wasteful number, since it uses less digits than its factorization.
28769196131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 94261.
The product of its digits is 979776, while the sum is 53.
The spelling of 28769196131 in words is "twenty-eight billion, seven hundred sixty-nine million, one hundred ninety-six thousand, one hundred thirty-one".
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