Base | Representation |
---|---|
bin | 1111010101100… |
… | …01111010100010 |
3 | 22222002100111101 |
4 | 13222301322202 |
5 | 230413430020 |
6 | 20433305014 |
7 | 3121356331 |
oct | 752617242 |
9 | 288070441 |
10 | 128655010 |
11 | 66693460 |
12 | 3710516a |
13 | 20867533 |
14 | 1312dd18 |
15 | b46500a |
hex | 7ab1ea2 |
128655010 has 16 divisors (see below), whose sum is σ = 252631872. Its totient is φ = 46783600.
The previous prime is 128655001. The next prime is 128655013. The reversal of 128655010 is 10556821.
It is a super-2 number, since 2×1286550102 = 33104223196200200, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 128655010.
It is not an unprimeable number, because it can be changed into a prime (128655013) 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, 584686 + ... + 584905.
It is an arithmetic number, because the mean of its divisors is an integer number (15789492).
Almost surely, 2128655010 is an apocalyptic number.
128655010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
128655010 is a deficient number, since it is larger than the sum of its proper divisors (123976862).
128655010 is a wasteful number, since it uses less digits than its factorization.
128655010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1169609.
The product of its (nonzero) digits is 2400, while the sum is 28.
The square root of 128655010 is about 11342.6191860610. The cubic root of 128655010 is about 504.8266045227.
The spelling of 128655010 in words is "one hundred twenty-eight million, six hundred fifty-five thousand, ten".
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