Base | Representation |
---|---|
bin | 1000000111110… |
… | …10111100000110 |
3 | 11202012200222212 |
4 | 10003322330012 |
5 | 114420333320 |
6 | 10432223422 |
7 | 1455103205 |
oct | 403727406 |
9 | 152180885 |
10 | 68136710 |
11 | 35509134 |
12 | 1a99ab72 |
13 | 111686a5 |
14 | 909923c |
15 | 5ead9c5 |
hex | 40faf06 |
68136710 has 16 divisors (see below), whose sum is σ = 124200000. Its totient is φ = 26909376.
The previous prime is 68136703. The next prime is 68136743. The reversal of 68136710 is 1763186.
It is a super-2 number, since 2×681367102 = 9285222499248200, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
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, 42335 + ... + 43914.
It is an arithmetic number, because the mean of its divisors is an integer number (7762500).
Almost surely, 268136710 is an apocalyptic number.
68136710 is a deficient number, since it is larger than the sum of its proper divisors (56063290).
68136710 is a wasteful number, since it uses less digits than its factorization.
68136710 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 86335.
The product of its (nonzero) digits is 6048, while the sum is 32.
The square root of 68136710 is about 8254.4963504747. The cubic root of 68136710 is about 408.4388580064.
Adding to 68136710 its reverse (1763186), we get a palindrome (69899896).
The spelling of 68136710 in words is "sixty-eight million, one hundred thirty-six thousand, seven hundred ten".
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