Base | Representation |
---|---|
bin | 1000001101011… |
… | …10010100010001 |
3 | 11210121000212010 |
4 | 10012232110101 |
5 | 120112341231 |
6 | 10500053133 |
7 | 1464253242 |
oct | 406562421 |
9 | 153530763 |
10 | 68871441 |
11 | 35970151 |
12 | 1b0941a9 |
13 | 11364c42 |
14 | 920acc9 |
15 | 60a6546 |
hex | 41ae511 |
68871441 has 8 divisors (see below), whose sum is σ = 91867680. Its totient is φ = 45894752.
The previous prime is 68871421. The next prime is 68871457. The reversal of 68871441 is 14417886.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 68871441 - 211 = 68869393 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 68871441.
It is not an unprimeable number, because it can be changed into a prime (68871401) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8866 + ... + 14708.
It is an arithmetic number, because the mean of its divisors is an integer number (11483460).
Almost surely, 268871441 is an apocalyptic number.
It is an amenable number.
68871441 is a deficient number, since it is larger than the sum of its proper divisors (22996239).
68871441 is a wasteful number, since it uses less digits than its factorization.
68871441 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9775.
The product of its digits is 43008, while the sum is 39.
The square root of 68871441 is about 8298.8819126434. The cubic root of 68871441 is about 409.9017035821.
The spelling of 68871441 in words is "sixty-eight million, eight hundred seventy-one thousand, four hundred forty-one".
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