Base | Representation |
---|---|
bin | 1111100101111… |
… | …11001100101100 |
3 | 100010010122212212 |
4 | 13302333030230 |
5 | 231441302242 |
6 | 20551345552 |
7 | 3145560161 |
oct | 762771454 |
9 | 303118785 |
10 | 130806572 |
11 | 67922a06 |
12 | 379822b8 |
13 | 2113b950 |
14 | 13530068 |
15 | b73c782 |
hex | 7cbf32c |
130806572 has 24 divisors (see below), whose sum is σ = 246920016. Its totient is φ = 60274368.
The previous prime is 130806547. The next prime is 130806587. The reversal of 130806572 is 275608031.
It is a happy number.
130806572 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-3 number, since 3×1308065723 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37703 + ... + 41025.
It is an arithmetic number, because the mean of its divisors is an integer number (10288334).
Almost surely, 2130806572 is an apocalyptic number.
It is an amenable number.
130806572 is a deficient number, since it is larger than the sum of its proper divisors (116113444).
130806572 is a wasteful number, since it uses less digits than its factorization.
130806572 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4097 (or 4095 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 32.
The square root of 130806572 is about 11437.0700793516. The cubic root of 130806572 is about 507.6252169850.
The spelling of 130806572 in words is "one hundred thirty million, eight hundred six thousand, five hundred seventy-two".
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