Base | Representation |
---|---|
bin | 1100100100101011… |
… | …00101111100100001 |
3 | 122102102111200012011 |
4 | 12102111211330201 |
5 | 102311011220111 |
6 | 3033450032521 |
7 | 326162625400 |
oct | 62225457441 |
9 | 18372450164 |
10 | 6750101281 |
11 | 2954290000 |
12 | 1384718741 |
13 | 8375ca691 |
14 | 4806a9637 |
15 | 297905021 |
hex | 192565f21 |
6750101281 has 45 divisors (see below), whose sum is σ = 8727283395. Its totient is φ = 5205594240.
The previous prime is 6750101273. The next prime is 6750101317. The reversal of 6750101281 is 1821010576.
The square root of 6750101281 is 82159.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 3031053025 + 3719048256 = 55055^2 + 60984^2 .
It is not a de Polignac number, because 6750101281 - 23 = 6750101273 is a prime.
It is a super-2 number, since 2×67501012812 = 91127734607515681922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (6750101221) by changing a digit.
It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 69588625 + ... + 69588721.
It is an arithmetic number, because the mean of its divisors is an integer number (193939631).
Almost surely, 26750101281 is an apocalyptic number.
6750101281 is the 82159-th square number.
6750101281 is the 41080-th centered octagonal number.
It is an amenable number.
6750101281 is a deficient number, since it is larger than the sum of its proper divisors (1977182114).
6750101281 is an frugal number, since it uses more digits than its factorization.
6750101281 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 252 (or 115 counting only the distinct ones).
The product of its (nonzero) digits is 3360, while the sum is 31.
The cubic root of 6750101281 is about 1889.8910270961.
The spelling of 6750101281 in words is "six billion, seven hundred fifty million, one hundred one thousand, two hundred eighty-one".
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