Base | Representation |
---|---|
bin | 10000000110001… |
… | …111001110011001 |
3 | 200211012000022211 |
4 | 100012033032121 |
5 | 1023114230211 |
6 | 42444315121 |
7 | 6456364036 |
oct | 2006171631 |
9 | 624160284 |
10 | 270070681 |
11 | 1294a2111 |
12 | 76542aa1 |
13 | 43c4c04a |
14 | 27c2238d |
15 | 18a9ae21 |
hex | 1018f399 |
270070681 has 2 divisors, whose sum is σ = 270070682. Its totient is φ = 270070680.
The previous prime is 270070679. The next prime is 270070709. The reversal of 270070681 is 186070072.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 253096281 + 16974400 = 15909^2 + 4120^2 .
It is a cyclic number.
It is not a de Polignac number, because 270070681 - 21 = 270070679 is a prime.
It is a super-2 number, since 2×2700706812 = 145876345471607522, which contains 22 as substring.
Together with 270070679, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (270070621) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135035340 + 135035341.
It is an arithmetic number, because the mean of its divisors is an integer number (135035341).
Almost surely, 2270070681 is an apocalyptic number.
It is an amenable number.
270070681 is a deficient number, since it is larger than the sum of its proper divisors (1).
270070681 is an equidigital number, since it uses as much as digits as its factorization.
270070681 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 4704, while the sum is 31.
The square root of 270070681 is about 16433.8273387547. The cubic root of 270070681 is about 646.3868011994.
The spelling of 270070681 in words is "two hundred seventy million, seventy thousand, six hundred eighty-one".
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