Base | Representation |
---|---|
bin | 1000000111100… |
… | …11111111101111 |
3 | 11202011020222120 |
4 | 10003303333233 |
5 | 114413431041 |
6 | 10431444023 |
7 | 1454624250 |
oct | 403637757 |
9 | 152136876 |
10 | 68108271 |
11 | 35499830 |
12 | 1a986613 |
13 | 1115876a |
14 | 908cb27 |
15 | 5ea5366 |
hex | 40f3fef |
68108271 has 32 divisors (see below), whose sum is σ = 116883456. Its totient is φ = 34236000.
The previous prime is 68108263. The next prime is 68108281. The reversal of 68108271 is 17280186.
It is a happy number.
It is not a de Polignac number, because 68108271 - 23 = 68108263 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68108281) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2406 + ... + 11916.
It is an arithmetic number, because the mean of its divisors is an integer number (3652608).
Almost surely, 268108271 is an apocalyptic number.
68108271 is a deficient number, since it is larger than the sum of its proper divisors (48775185).
68108271 is a wasteful number, since it uses less digits than its factorization.
68108271 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9563.
The product of its (nonzero) digits is 5376, while the sum is 33.
The square root of 68108271 is about 8252.7735337885. The cubic root of 68108271 is about 408.3820251621.
The spelling of 68108271 in words is "sixty-eight million, one hundred eight thousand, two hundred seventy-one".
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