Base | Representation |
---|---|
bin | 1111010001001… |
… | …10010110010000 |
3 | 22221000022022120 |
4 | 13220212112100 |
5 | 230242131334 |
6 | 20413134240 |
7 | 3113455554 |
oct | 750462620 |
9 | 287008276 |
10 | 128083344 |
11 | 66332a04 |
12 | 36a8a380 |
13 | 206c727c |
14 | 13021864 |
15 | b3a0949 |
hex | 7a26590 |
128083344 has 80 divisors (see below), whose sum is σ = 348311040. Its totient is φ = 40504320.
The previous prime is 128083337. The next prime is 128083363. The reversal of 128083344 is 443380821.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71937 + ... + 73695.
It is an arithmetic number, because the mean of its divisors is an integer number (4353888).
Almost surely, 2128083344 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 128083344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174155520).
128083344 is an abundant number, since it is smaller than the sum of its proper divisors (220227696).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128083344 is a wasteful number, since it uses less digits than its factorization.
128083344 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1848 (or 1842 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 33.
The square root of 128083344 is about 11317.3912188278. The cubic root of 128083344 is about 504.0777783719.
The spelling of 128083344 in words is "one hundred twenty-eight million, eighty-three thousand, three hundred forty-four".
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