Base | Representation |
---|---|
bin | 100101010011010011… |
… | …1001101100010010000 |
3 | 21122202122010210200221 |
4 | 1022212213031202100 |
5 | 2303023301130430 |
6 | 100444413522424 |
7 | 5534032533304 |
oct | 1124647154220 |
9 | 248678123627 |
10 | 80104708240 |
11 | 30a77023a17 |
12 | 13636aa3414 |
13 | 7727a3665b |
14 | 3c3ca33d04 |
15 | 213c7a357a |
hex | 12a69cd890 |
80104708240 has 40 divisors (see below), whose sum is σ = 186255456120. Its totient is φ = 32039817216.
The previous prime is 80104708219. The next prime is 80104708253. The reversal of 80104708240 is 4280740108.
It can be written as a sum of positive squares in 4 ways, for example, as 7265175696 + 72839532544 = 85236^2 + 269888^2 .
It is a tau number, because it is divible by the number of its divisors (40).
It is a junction number, because it is equal to n+sod(n) for n = 80104708196 and 80104708205.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2051782 + ... + 2090458.
It is an arithmetic number, because the mean of its divisors is an integer number (4656386403).
Almost surely, 280104708240 is an apocalyptic number.
80104708240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
80104708240 is an abundant number, since it is smaller than the sum of its proper divisors (106150747880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80104708240 is a wasteful number, since it uses less digits than its factorization.
80104708240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 64579 (or 64573 counting only the distinct ones).
The product of its (nonzero) digits is 14336, while the sum is 34.
The spelling of 80104708240 in words is "eighty billion, one hundred four million, seven hundred eight thousand, two hundred forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •