Base | Representation |
---|---|
bin | 1111100011101… |
… | …10110010001000 |
3 | 100002120121000020 |
4 | 13301312302020 |
5 | 231402304320 |
6 | 20541140440 |
7 | 3143213340 |
oct | 761666210 |
9 | 302517006 |
10 | 130509960 |
11 | 67740079 |
12 | 3785a720 |
13 | 21066939 |
14 | 13493d20 |
15 | b6ce940 |
hex | 7c76c88 |
130509960 has 128 divisors (see below), whose sum is σ = 449971200. Its totient is φ = 29664000.
The previous prime is 130509949. The next prime is 130509983. The reversal of 130509960 is 69905031.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210531 + ... + 211149.
It is an arithmetic number, because the mean of its divisors is an integer number (3515400).
Almost surely, 2130509960 is an apocalyptic number.
130509960 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 130509960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224985600).
130509960 is an abundant number, since it is smaller than the sum of its proper divisors (319461240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130509960 is a wasteful number, since it uses less digits than its factorization.
130509960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 891 (or 887 counting only the distinct ones).
The product of its (nonzero) digits is 7290, while the sum is 33.
The square root of 130509960 is about 11424.0955878354. The cubic root of 130509960 is about 507.2412360699.
The spelling of 130509960 in words is "one hundred thirty million, five hundred nine thousand, nine hundred sixty".
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