Base | Representation |
---|---|
bin | 111100111110100010… |
… | …1110001011101011011 |
3 | 110111222222011120221011 |
4 | 1321331011301131123 |
5 | 4121140101343222 |
6 | 140053451154351 |
7 | 12314001644005 |
oct | 1717505613533 |
9 | 414888146834 |
10 | 130947684187 |
11 | 50597610301 |
12 | 214661459b7 |
13 | c46b3254c8 |
14 | 64a32b9375 |
15 | 361615dc77 |
hex | 1e7d17175b |
130947684187 has 4 divisors (see below), whose sum is σ = 131035393440. Its totient is φ = 130859974936.
The previous prime is 130947684181. The next prime is 130947684221. The reversal of 130947684187 is 781486749031.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 781486749031 = 97 ⋅8056564423.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-130947684187 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130947684181) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43852387 + ... + 43855372.
It is an arithmetic number, because the mean of its divisors is an integer number (32758848360).
Almost surely, 2130947684187 is an apocalyptic number.
130947684187 is a deficient number, since it is larger than the sum of its proper divisors (87709253).
130947684187 is an equidigital number, since it uses as much as digits as its factorization.
130947684187 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 87709252.
The product of its (nonzero) digits is 8128512, while the sum is 58.
The spelling of 130947684187 in words is "one hundred thirty billion, nine hundred forty-seven million, six hundred eighty-four thousand, one hundred eighty-seven".
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