Base | Representation |
---|---|
bin | 1000001101100… |
… | …01000110000011 |
3 | 11210121121110112 |
4 | 10012301012003 |
5 | 120113222234 |
6 | 10500221535 |
7 | 1464331355 |
oct | 406610603 |
9 | 153547415 |
10 | 68882819 |
11 | 35978755 |
12 | 1b09a8ab |
13 | 1136a185 |
14 | 92110d5 |
15 | 60a9ace |
hex | 41b1183 |
68882819 has 2 divisors, whose sum is σ = 68882820. Its totient is φ = 68882818.
The previous prime is 68882773. The next prime is 68882831. The reversal of 68882819 is 91828886.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 68882819 - 216 = 68817283 is a prime.
It is a super-2 number, since 2×688828192 = 9489685506773522, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (68842819) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34441409 + 34441410.
It is an arithmetic number, because the mean of its divisors is an integer number (34441410).
Almost surely, 268882819 is an apocalyptic number.
68882819 is a deficient number, since it is larger than the sum of its proper divisors (1).
68882819 is an equidigital number, since it uses as much as digits as its factorization.
68882819 is an evil number, because the sum of its binary digits is even.
The product of its digits is 442368, while the sum is 50.
The square root of 68882819 is about 8299.5673983648. The cubic root of 68882819 is about 409.9242751285.
The spelling of 68882819 in words is "sixty-eight million, eight hundred eighty-two thousand, eight hundred nineteen".
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