Base | Representation |
---|---|
bin | 111100100110111001… |
… | …1001001001010000001 |
3 | 110102221200020001010221 |
4 | 1321031303021022001 |
5 | 4113023443140421 |
6 | 135443025423041 |
7 | 12255226024042 |
oct | 1711563111201 |
9 | 412850201127 |
10 | 130154271361 |
11 | 5021a769524 |
12 | 2128449aa81 |
13 | c372b3a96a |
14 | 6429b868c9 |
15 | 35bb688841 |
hex | 1e4dcc9281 |
130154271361 has 3 divisors (see below), whose sum is σ = 130154632131. Its totient is φ = 130153910592.
The previous prime is 130154271337. The next prime is 130154271389. The reversal of 130154271361 is 163172451031.
The square root of 130154271361 is 360769.
It is a perfect power (a square), and thus also a powerful number.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It can be written as a sum of positive squares in only one way, i.e., 49475549761 + 80678721600 = 222431^2 + 284040^2 .
It is not a de Polignac number, because 130154271361 - 25 = 130154271329 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130154271301) 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 2 ways as a sum of consecutive naturals, for example, 180385 + ... + 541153.
It is an arithmetic number, because the mean of its divisors is an integer number (43384877377).
Almost surely, 2130154271361 is an apocalyptic number.
130154271361 is the 360769-th square number.
130154271361 is the 180385-th centered octagonal number.
It is an amenable number.
130154271361 is a deficient number, since it is larger than the sum of its proper divisors (360770).
130154271361 is an frugal number, since it uses more digits than its factorization.
130154271361 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 721538 (or 360769 counting only the distinct ones).
The product of its (nonzero) digits is 15120, while the sum is 34.
The spelling of 130154271361 in words is "one hundred thirty billion, one hundred fifty-four million, two hundred seventy-one thousand, three hundred sixty-one".
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