Base | Representation |
---|---|
bin | 1111001000111101… |
… | …01111101010101001 |
3 | 202222110200222021112 |
4 | 13210132233222221 |
5 | 113121311411410 |
6 | 3422320120105 |
7 | 405265555460 |
oct | 74436575251 |
9 | 22873628245 |
10 | 8128232105 |
11 | 34a11a20a4 |
12 | 16aa166035 |
13 | 9c6c8ccc6 |
14 | 5717279d7 |
15 | 3288ca105 |
hex | 1e47afaa9 |
8128232105 has 16 divisors (see below), whose sum is σ = 11170202880. Its totient is φ = 5562188352.
The previous prime is 8128232093. The next prime is 8128232107. The reversal of 8128232105 is 5012328218.
It is a happy number.
It is not a de Polignac number, because 8128232105 - 214 = 8128215721 is a prime.
It is not an unprimeable number, because it can be changed into a prime (8128232107) 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, 221390 + ... + 255479.
It is an arithmetic number, because the mean of its divisors is an integer number (698137680).
Almost surely, 28128232105 is an apocalyptic number.
It is an amenable number.
8128232105 is a deficient number, since it is larger than the sum of its proper divisors (3041970775).
8128232105 is a wasteful number, since it uses less digits than its factorization.
8128232105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 477368.
The product of its (nonzero) digits is 7680, while the sum is 32.
The square root of 8128232105 is about 90156.7085967539. The cubic root of 8128232105 is about 2010.6294164233.
The spelling of 8128232105 in words is "eight billion, one hundred twenty-eight million, two hundred thirty-two thousand, one hundred five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •