Base | Representation |
---|---|
bin | 10111111111101100… |
… | …10011101011000001 |
3 | 1020020210102202010102 |
4 | 23333312103223001 |
5 | 202340341023100 |
6 | 5530145412145 |
7 | 634144155602 |
oct | 137766235301 |
9 | 36223382112 |
10 | 12882361025 |
11 | 5510836566 |
12 | 25b633a055 |
13 | 12a3bc3641 |
14 | 8a2ca5da9 |
15 | 505e65cd5 |
hex | 2ffd93ac1 |
12882361025 has 6 divisors (see below), whose sum is σ = 15974127702. Its totient is φ = 10305888800.
The previous prime is 12882361021. The next prime is 12882361043. The reversal of 12882361025 is 52016328821.
It can be written as a sum of positive squares in 3 ways, for example, as 987404929 + 11894956096 = 31423^2 + 109064^2 .
It is not a de Polignac number, because 12882361025 - 22 = 12882361021 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 12882361025.
It is not an unprimeable number, because it can be changed into a prime (12882361021) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 257647196 + ... + 257647245.
It is an arithmetic number, because the mean of its divisors is an integer number (2662354617).
Almost surely, 212882361025 is an apocalyptic number.
It is an amenable number.
12882361025 is a deficient number, since it is larger than the sum of its proper divisors (3091766677).
12882361025 is an equidigital number, since it uses as much as digits as its factorization.
12882361025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 515294451 (or 515294446 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 38.
Adding to 12882361025 its reverse (52016328821), we get a palindrome (64898689846).
The spelling of 12882361025 in words is "twelve billion, eight hundred eighty-two million, three hundred sixty-one thousand, twenty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •