Base | Representation |
---|---|
bin | 1101001000010011… |
… | …01110100010110101 |
3 | 200012020220022121211 |
4 | 12210021232202311 |
5 | 103414014340121 |
6 | 3123244041421 |
7 | 336452230012 |
oct | 64411564265 |
9 | 20166808554 |
10 | 7048980661 |
11 | 2a97a69558 |
12 | 1448833271 |
13 | 8844c5398 |
14 | 4ac26a709 |
15 | 2b3c91ce1 |
hex | 1a426e8b5 |
7048980661 has 2 divisors, whose sum is σ = 7048980662. Its totient is φ = 7048980660.
The previous prime is 7048980647. The next prime is 7048980709. The reversal of 7048980661 is 1660898407.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 6953058225 + 95922436 = 83385^2 + 9794^2 .
It is a cyclic number.
It is not a de Polignac number, because 7048980661 - 217 = 7048849589 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (7048980161) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3524490330 + 3524490331.
It is an arithmetic number, because the mean of its divisors is an integer number (3524490331).
Almost surely, 27048980661 is an apocalyptic number.
It is an amenable number.
7048980661 is a deficient number, since it is larger than the sum of its proper divisors (1).
7048980661 is an equidigital number, since it uses as much as digits as its factorization.
7048980661 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 580608, while the sum is 49.
The square root of 7048980661 is about 83958.2078238930. The cubic root of 7048980661 is about 1917.3825608763.
The spelling of 7048980661 in words is "seven billion, forty-eight million, nine hundred eighty thousand, six hundred sixty-one".
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