Base | Representation |
---|---|
bin | 1000001011001… |
… | …11011000001101 |
3 | 11210001021021111 |
4 | 10011213120031 |
5 | 120024042002 |
6 | 10445532021 |
7 | 1461633151 |
oct | 405473015 |
9 | 153037244 |
10 | 68580877 |
11 | 35791912 |
12 | 1ab74011 |
13 | 11292901 |
14 | 9173061 |
15 | 604a3d7 |
hex | 416760d |
68580877 has 2 divisors, whose sum is σ = 68580878. Its totient is φ = 68580876.
The previous prime is 68580859. The next prime is 68580881. The reversal of 68580877 is 77808586.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 68459076 + 121801 = 8274^2 + 349^2 .
It is a cyclic number.
It is not a de Polignac number, because 68580877 - 223 = 60192269 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 68580877.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68580857) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34290438 + 34290439.
It is an arithmetic number, because the mean of its divisors is an integer number (34290439).
Almost surely, 268580877 is an apocalyptic number.
It is an amenable number.
68580877 is a deficient number, since it is larger than the sum of its proper divisors (1).
68580877 is an equidigital number, since it uses as much as digits as its factorization.
68580877 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 752640, while the sum is 49.
The square root of 68580877 is about 8281.3571955326. The cubic root of 68580877 is about 409.3244417255.
The spelling of 68580877 in words is "sixty-eight million, five hundred eighty thousand, eight hundred seventy-seven".
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