Base | Representation |
---|---|
bin | 1100111110101111… |
… | …11010010100010011 |
3 | 122222200001101000111 |
4 | 12133113322110103 |
5 | 103233004002234 |
6 | 3111301502151 |
7 | 334456634353 |
oct | 63727722423 |
9 | 18880041014 |
10 | 6968812819 |
11 | 2a56793241 |
12 | 1425a11957 |
13 | 870a067a7 |
14 | 4a175cb63 |
15 | 2abc08664 |
hex | 19f5fa513 |
6968812819 has 2 divisors, whose sum is σ = 6968812820. Its totient is φ = 6968812818.
The previous prime is 6968812783. The next prime is 6968812889. The reversal of 6968812819 is 9182188696.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 6968812819 - 225 = 6935258387 is a prime.
It is a super-2 number, since 2×69688128192 = 97128704212517453522, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (6968812889) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3484406409 + 3484406410.
It is an arithmetic number, because the mean of its divisors is an integer number (3484406410).
Almost surely, 26968812819 is an apocalyptic number.
6968812819 is a deficient number, since it is larger than the sum of its proper divisors (1).
6968812819 is an equidigital number, since it uses as much as digits as its factorization.
6968812819 is an evil number, because the sum of its binary digits is even.
The product of its digits is 2985984, while the sum is 58.
The square root of 6968812819 is about 83479.4155405990. The cubic root of 6968812819 is about 1910.0860517867.
The spelling of 6968812819 in words is "six billion, nine hundred sixty-eight million, eight hundred twelve thousand, eight hundred nineteen".
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