Base | Representation |
---|---|
bin | 11100000010101101… |
… | …101110101101000001 |
3 | 2212201102212101202012 |
4 | 130002231232231001 |
5 | 443131220011111 |
6 | 21455452302305 |
7 | 2114106303626 |
oct | 340255565501 |
9 | 85642771665 |
10 | 30110313281 |
11 | 1185153a034 |
12 | 5a03a71995 |
13 | 2abb1a9c29 |
14 | 1658d6234d |
15 | bb366948b |
hex | 702b6eb41 |
30110313281 has 2 divisors, whose sum is σ = 30110313282. Its totient is φ = 30110313280.
The previous prime is 30110313271. The next prime is 30110313319. The reversal of 30110313281 is 18231301103.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 29111184400 + 999128881 = 170620^2 + 31609^2 .
It is a cyclic number.
It is not a de Polignac number, because 30110313281 - 26 = 30110313217 is a prime.
It is a super-2 number, since 2×301103132812 (a number of 22 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (30110313271) 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 as a sum of consecutive naturals, namely, 15055156640 + 15055156641.
It is an arithmetic number, because the mean of its divisors is an integer number (15055156641).
Almost surely, 230110313281 is an apocalyptic number.
It is an amenable number.
30110313281 is a deficient number, since it is larger than the sum of its proper divisors (1).
30110313281 is an equidigital number, since it uses as much as digits as its factorization.
30110313281 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 432, while the sum is 23.
Adding to 30110313281 its reverse (18231301103), we get a palindrome (48341614384).
The spelling of 30110313281 in words is "thirty billion, one hundred ten million, three hundred thirteen thousand, two hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •