Base | Representation |
---|---|
bin | 1111100011110… |
… | …10011100101011 |
3 | 100002121100121012 |
4 | 13301322130223 |
5 | 231403244341 |
6 | 20541334135 |
7 | 3143305163 |
oct | 761723453 |
9 | 302540535 |
10 | 130524971 |
11 | 67750385 |
12 | 3786734b |
13 | 21070715 |
14 | 134995a3 |
15 | b6d40eb |
hex | 7c7a72b |
130524971 has 4 divisors (see below), whose sum is σ = 130570392. Its totient is φ = 130479552.
The previous prime is 130524959. The next prime is 130524983. The reversal of 130524971 is 179425031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179425031 = 10133 ⋅17707.
It is an interprime number because it is at equal distance from previous prime (130524959) and next prime (130524983).
It is a cyclic number.
It is not a de Polignac number, because 130524971 - 226 = 63416107 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130524571) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 18086 + ... + 24251.
It is an arithmetic number, because the mean of its divisors is an integer number (32642598).
Almost surely, 2130524971 is an apocalyptic number.
130524971 is a deficient number, since it is larger than the sum of its proper divisors (45421).
130524971 is an equidigital number, since it uses as much as digits as its factorization.
130524971 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45420.
The product of its (nonzero) digits is 7560, while the sum is 32.
The square root of 130524971 is about 11424.7525574955. The cubic root of 130524971 is about 507.2606826222.
The spelling of 130524971 in words is "one hundred thirty million, five hundred twenty-four thousand, nine hundred seventy-one".
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