Base | Representation |
---|---|
bin | 1101001011110001… |
… | …00011100100010001 |
3 | 200021021120100212121 |
4 | 12211320203210101 |
5 | 103443434034211 |
6 | 3130202454241 |
7 | 340254202465 |
oct | 64570434421 |
9 | 20237510777 |
10 | 7078033681 |
11 | 3002402514 |
12 | 1456504381 |
13 | 88a528314 |
14 | 4b20704a5 |
15 | 2b65d0271 |
hex | 1a5e23911 |
7078033681 has 2 divisors, whose sum is σ = 7078033682. Its totient is φ = 7078033680.
The previous prime is 7078033661. The next prime is 7078033693. The reversal of 7078033681 is 1863308707.
7078033681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 7029313281 + 48720400 = 83841^2 + 6980^2 .
It is a cyclic number.
It is not a de Polignac number, because 7078033681 - 25 = 7078033649 is a prime.
It is a super-2 number, since 2×70780336812 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (7078033661) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3539016840 + 3539016841.
It is an arithmetic number, because the mean of its divisors is an integer number (3539016841).
Almost surely, 27078033681 is an apocalyptic number.
It is an amenable number.
7078033681 is a deficient number, since it is larger than the sum of its proper divisors (1).
7078033681 is an equidigital number, since it uses as much as digits as its factorization.
7078033681 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 169344, while the sum is 43.
The square root of 7078033681 is about 84131.0506353035. The cubic root of 7078033681 is about 1920.0131727431.
The spelling of 7078033681 in words is "seven billion, seventy-eight million, thirty-three thousand, six hundred eighty-one".
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