Base | Representation |
---|---|
bin | 1111001000111… |
… | …01111001000000 |
3 | 22211222021102110 |
4 | 13210131321000 |
5 | 230003001003 |
6 | 20334015320 |
7 | 3101324523 |
oct | 744357100 |
9 | 284867373 |
10 | 127000128 |
11 | 65763092 |
12 | 36647540 |
13 | 20408208 |
14 | 12c1cbba |
15 | b239a03 |
hex | 791de40 |
127000128 has 28 divisors (see below), whose sum is σ = 336021680. Its totient is φ = 42333312.
The previous prime is 127000117. The next prime is 127000129. The reversal of 127000128 is 821000721.
It is a super-2 number, since 2×1270001282 = 32258065024032768, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (127000129) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330538 + ... + 330921.
Almost surely, 2127000128 is an apocalyptic number.
It is an amenable number.
127000128 is an abundant number, since it is smaller than the sum of its proper divisors (209021552).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
127000128 is an equidigital number, since it uses as much as digits as its factorization.
127000128 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 661474 (or 661464 counting only the distinct ones).
The product of its (nonzero) digits is 224, while the sum is 21.
The square root of 127000128 is about 11269.4333486649. The cubic root of 127000128 is about 502.6527384014.
Adding to 127000128 its reverse (821000721), we get a palindrome (948000849).
The spelling of 127000128 in words is "one hundred twenty-seven million, one hundred twenty-eight", and thus it is an aban number.
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