Base | Representation |
---|---|
bin | 1000001110011… |
… | …00000100111101 |
3 | 11210211020001221 |
4 | 10013030010331 |
5 | 120130241331 |
6 | 10502433341 |
7 | 1465301524 |
oct | 407140475 |
9 | 153736057 |
10 | 68993341 |
11 | 35a4379a |
12 | 1b132851 |
13 | 113a8581 |
14 | 923d4bb |
15 | 60cc711 |
hex | 41cc13d |
68993341 has 2 divisors, whose sum is σ = 68993342. Its totient is φ = 68993340.
The previous prime is 68993339. The next prime is 68993347. The reversal of 68993341 is 14339986.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 67716441 + 1276900 = 8229^2 + 1130^2 .
It is a cyclic number.
It is not a de Polignac number, because 68993341 - 21 = 68993339 is a prime.
It is a super-2 number, since 2×689933412 = 9520162204684562, which contains 22 as substring.
Together with 68993339, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68993347) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34496670 + 34496671.
It is an arithmetic number, because the mean of its divisors is an integer number (34496671).
Almost surely, 268993341 is an apocalyptic number.
It is an amenable number.
68993341 is a deficient number, since it is larger than the sum of its proper divisors (1).
68993341 is an equidigital number, since it uses as much as digits as its factorization.
68993341 is an evil number, because the sum of its binary digits is even.
The product of its digits is 139968, while the sum is 43.
The square root of 68993341 is about 8306.2230285491. The cubic root of 68993341 is about 410.1433981846.
The spelling of 68993341 in words is "sixty-eight million, nine hundred ninety-three thousand, three hundred forty-one".
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