Base | Representation |
---|---|
bin | 111011101100001001… |
… | …1101101110101100000 |
3 | 110020212022010002121211 |
4 | 1313120103231311200 |
5 | 4100004333124340 |
6 | 134515252355504 |
7 | 12155332235035 |
oct | 1673023556540 |
9 | 406768102554 |
10 | 128183098720 |
11 | 4a3a9021326 |
12 | 20a14315b94 |
13 | c11a647911 |
14 | 62c007338c |
15 | 35035bc5ea |
hex | 1dd84edd60 |
128183098720 has 96 divisors (see below), whose sum is σ = 318885245280. Its totient is φ = 48557260800.
The previous prime is 128183098661. The next prime is 128183098759. The reversal of 128183098720 is 27890381821.
128183098720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×1281830987202 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
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, 11245344 + ... + 11256736.
It is an arithmetic number, because the mean of its divisors is an integer number (3321721305).
Almost surely, 2128183098720 is an apocalyptic number.
128183098720 is a gapful number since it is divisible by the number (10) 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 128183098720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159442622640).
128183098720 is an abundant number, since it is smaller than the sum of its proper divisors (190702146560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128183098720 is a wasteful number, since it uses less digits than its factorization.
128183098720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15128 (or 15120 counting only the distinct ones).
The product of its (nonzero) digits is 387072, while the sum is 49.
The spelling of 128183098720 in words is "one hundred twenty-eight billion, one hundred eighty-three million, ninety-eight thousand, seven hundred twenty".
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