Base | Representation |
---|---|
bin | 1111010011011… |
… | …11010110110100 |
3 | 22221120111112021 |
4 | 13221233112310 |
5 | 230331214023 |
6 | 20423402524 |
7 | 3116142451 |
oct | 751572664 |
9 | 287514467 |
10 | 128382388 |
11 | 66517652 |
12 | 36bb3444 |
13 | 207a0414 |
14 | 1309c828 |
15 | b40e35d |
hex | 7a6f5b4 |
128382388 has 12 divisors (see below), whose sum is σ = 224802592. Its totient is φ = 64153080.
The previous prime is 128382383. The next prime is 128382403. The reversal of 128382388 is 883283821.
It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128382383) 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 3 ways as a sum of consecutive naturals, for example, 1128 + ... + 16063.
Almost surely, 2128382388 is an apocalyptic number.
It is an amenable number.
128382388 is a deficient number, since it is larger than the sum of its proper divisors (96420204).
128382388 is a wasteful number, since it uses less digits than its factorization.
128382388 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19062 (or 19060 counting only the distinct ones).
The product of its digits is 147456, while the sum is 43.
The square root of 128382388 is about 11330.5952182575. The cubic root of 128382388 is about 504.4697738422.
The spelling of 128382388 in words is "one hundred twenty-eight million, three hundred eighty-two thousand, three hundred eighty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.095 sec. • engine limits •