Base | Representation |
---|---|
bin | 1000001100001… |
… | …00111010111110 |
3 | 11210021102021022 |
4 | 10012010322332 |
5 | 120041430021 |
6 | 10452304142 |
7 | 1462646021 |
oct | 406047276 |
9 | 153242238 |
10 | 68701886 |
11 | 35864820 |
12 | 1b012052 |
13 | 11305a06 |
14 | 91a51b8 |
15 | 60711ab |
hex | 4184ebe |
68701886 has 16 divisors (see below), whose sum is σ = 114544368. Its totient is φ = 30638400.
The previous prime is 68701883. The next prime is 68701889. The reversal of 68701886 is 68810786.
It is an interprime number because it is at equal distance from previous prime (68701883) and next prime (68701889).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68701883) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28295 + ... + 30626.
It is an arithmetic number, because the mean of its divisors is an integer number (7159023).
Almost surely, 268701886 is an apocalyptic number.
68701886 is a deficient number, since it is larger than the sum of its proper divisors (45842482).
68701886 is a wasteful number, since it uses less digits than its factorization.
68701886 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 58987.
The product of its (nonzero) digits is 129024, while the sum is 44.
The square root of 68701886 is about 8288.6600847182. The cubic root of 68701886 is about 409.5650473651.
Subtracting 68701886 from its reverse (68810786), we obtain a square (108900 = 3302).
The spelling of 68701886 in words is "sixty-eight million, seven hundred one thousand, eight hundred eighty-six".
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