Base | Representation |
---|---|
bin | 1111010110111… |
… | …11011010011000 |
3 | 22222102211010112 |
4 | 13223133122120 |
5 | 230440410433 |
6 | 20441303452 |
7 | 3123063545 |
oct | 753373230 |
9 | 288384115 |
10 | 128841368 |
11 | 66800477 |
12 | 37194b88 |
13 | 209012c6 |
14 | 1317bbcc |
15 | b4a0348 |
hex | 7adf698 |
128841368 has 32 divisors (see below), whose sum is σ = 260139600. Its totient is φ = 59599872.
The previous prime is 128841367. The next prime is 128841371. The reversal of 128841368 is 863148821.
It is a super-2 number, since 2×1288413682 = 33200196216222848, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128841367) 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, 5 + ... + 16052.
Almost surely, 2128841368 is an apocalyptic number.
It is an amenable number.
128841368 is an abundant number, since it is smaller than the sum of its proper divisors (131298232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128841368 is a wasteful number, since it uses less digits than its factorization.
128841368 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16139 (or 16135 counting only the distinct ones).
The product of its digits is 73728, while the sum is 41.
The square root of 128841368 is about 11350.8311589945. The cubic root of 128841368 is about 505.0702356319.
The spelling of 128841368 in words is "one hundred twenty-eight million, eight hundred forty-one thousand, three hundred sixty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •