Base | Representation |
---|---|
bin | 1110010100100… |
… | …00001001010000 |
3 | 22101001010202011 |
4 | 13022100021100 |
5 | 221223044310 |
6 | 15530432304 |
7 | 2656033432 |
oct | 712201120 |
9 | 271033664 |
10 | 120128080 |
11 | 6189a006 |
12 | 34292694 |
13 | 1bb70307 |
14 | 11d50652 |
15 | a82d78a |
hex | 7290250 |
120128080 has 40 divisors (see below), whose sum is σ = 291445632. Its totient is φ = 45961344.
The previous prime is 120128077. The next prime is 120128081. The reversal of 120128080 is 80821021.
It is a tau number, because it is divible by the number of its divisors (40).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120128081) 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, 30804 + ... + 34483.
Almost surely, 2120128080 is an apocalyptic number.
120128080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
120128080 is an abundant number, since it is smaller than the sum of its proper divisors (171317552).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120128080 is a wasteful number, since it uses less digits than its factorization.
120128080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 65323 (or 65317 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 22.
The square root of 120128080 is about 10960.2956164512. The cubic root of 120128080 is about 493.4178371598.
The spelling of 120128080 in words is "one hundred twenty million, one hundred twenty-eight thousand, eighty".
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