Base | Representation |
---|---|
bin | 1000001110010… |
… | …01010101010101 |
3 | 11210210122122122 |
4 | 10013021111111 |
5 | 120124411401 |
6 | 10502305325 |
7 | 1465223666 |
oct | 407112525 |
9 | 153718578 |
10 | 68982101 |
11 | 35a36301 |
12 | 1b128245 |
13 | 113a3416 |
14 | 923936d |
15 | 60c921b |
hex | 41c9555 |
68982101 has 2 divisors, whose sum is σ = 68982102. Its totient is φ = 68982100.
The previous prime is 68982077. The next prime is 68982139. The reversal of 68982101 is 10128986.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 42706225 + 26275876 = 6535^2 + 5126^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-68982101 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68982181) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34491050 + 34491051.
It is an arithmetic number, because the mean of its divisors is an integer number (34491051).
Almost surely, 268982101 is an apocalyptic number.
It is an amenable number.
68982101 is a deficient number, since it is larger than the sum of its proper divisors (1).
68982101 is an equidigital number, since it uses as much as digits as its factorization.
68982101 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 6912, while the sum is 35.
The square root of 68982101 is about 8305.5463998463. The cubic root of 68982101 is about 410.1211242371.
The spelling of 68982101 in words is "sixty-eight million, nine hundred eighty-two thousand, one hundred one".
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