Base | Representation |
---|---|
bin | 111100101010101110… |
… | …1000101001101110100 |
3 | 110110021121220012001021 |
4 | 1321111131011031310 |
5 | 4113304333041110 |
6 | 135503454310524 |
7 | 12261345504313 |
oct | 1712535051564 |
9 | 413247805037 |
10 | 130282705780 |
11 | 50286211177 |
12 | 212bb4b8444 |
13 | c393628966 |
14 | 643cc5a27a |
15 | 35c7aa82da |
hex | 1e55745374 |
130282705780 has 48 divisors (see below), whose sum is σ = 281516017104. Its totient is φ = 50623539200.
The previous prime is 130282705757. The next prime is 130282705783. The reversal of 130282705780 is 87507282031.
It can be written as a sum of positive squares in 8 ways, for example, as 36516916836 + 93765788944 = 191094^2 + 306212^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130282705783) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501397 + ... + 715516.
It is an arithmetic number, because the mean of its divisors is an integer number (5864917023).
Almost surely, 2130282705780 is an apocalyptic number.
130282705780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
130282705780 is an abundant number, since it is smaller than the sum of its proper divisors (151233311324).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130282705780 is a wasteful number, since it uses less digits than its factorization.
130282705780 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1217076 (or 1217074 counting only the distinct ones).
The product of its (nonzero) digits is 188160, while the sum is 43.
The spelling of 130282705780 in words is "one hundred thirty billion, two hundred eighty-two million, seven hundred five thousand, seven hundred eighty".
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