Base | Representation |
---|---|
bin | 1111010001100… |
… | …01000000000000 |
3 | 22221002112011120 |
4 | 13220301000000 |
5 | 230300030401 |
6 | 20414112240 |
7 | 3114030015 |
oct | 750610000 |
9 | 287075146 |
10 | 128126976 |
11 | 6636276a |
12 | 36aab680 |
13 | 207110a3 |
14 | 1303370c |
15 | b3ad836 |
hex | 7a31000 |
128126976 has 52 divisors (see below), whose sum is σ = 341662992. Its totient is φ = 42704896.
The previous prime is 128126969. The next prime is 128126983. The reversal of 128126976 is 679621821.
It is an interprime number because it is at equal distance from previous prime (128126969) and next prime (128126983).
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7075 + ... + 17501.
Almost surely, 2128126976 is an apocalyptic number.
128126976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 128126976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170831496).
128126976 is an abundant number, since it is smaller than the sum of its proper divisors (213536016).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128126976 is an equidigital number, since it uses as much as digits as its factorization.
128126976 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10454 (or 10432 counting only the distinct ones).
The product of its digits is 72576, while the sum is 42.
The square root of 128126976 is about 11319.3187074134. The cubic root of 128126976 is about 504.1350104417.
The spelling of 128126976 in words is "one hundred twenty-eight million, one hundred twenty-six thousand, nine hundred seventy-six".
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