Base | Representation |
---|---|
bin | 111100101010011010… |
… | …0001011110011100101 |
3 | 110110020212201111201111 |
4 | 1321110310023303211 |
5 | 4113244112003434 |
6 | 135502432425021 |
7 | 12261155413105 |
oct | 1712464136345 |
9 | 413225644644 |
10 | 130271984869 |
11 | 50280159414 |
12 | 212b79a8171 |
13 | c391343c20 |
14 | 643b669205 |
15 | 35c6b8b964 |
hex | 1e54d0bce5 |
130271984869 has 8 divisors (see below), whose sum is σ = 140295730680. Its totient is φ = 120248642496.
The previous prime is 130271984819. The next prime is 130271984881. The reversal of 130271984869 is 968489172031.
It can be written as a sum of positive squares in 4 ways, for example, as 9958044100 + 120313940769 = 99790^2 + 346863^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-130271984869 is a prime.
It is a super-2 number, since 2×1302719848692 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130271984809) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095099 + ... + 1208215.
It is an arithmetic number, because the mean of its divisors is an integer number (17536966335).
Almost surely, 2130271984869 is an apocalyptic number.
It is an amenable number.
130271984869 is a deficient number, since it is larger than the sum of its proper divisors (10023745811).
130271984869 is a wasteful number, since it uses less digits than its factorization.
130271984869 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 201719.
The product of its (nonzero) digits is 5225472, while the sum is 58.
The spelling of 130271984869 in words is "one hundred thirty billion, two hundred seventy-one million, nine hundred eighty-four thousand, eight hundred sixty-nine".
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