Base | Representation |
---|---|
bin | 1000000111001… |
… | …00001110111110 |
3 | 11202000222102102 |
4 | 10003210032332 |
5 | 114404344320 |
6 | 10430225102 |
7 | 1454235110 |
oct | 403441676 |
9 | 152028372 |
10 | 68043710 |
11 | 35455279 |
12 | 1a955192 |
13 | 11135267 |
14 | 90733b0 |
15 | 5e91175 |
hex | 40e43be |
68043710 has 32 divisors (see below), whose sum is σ = 140260032. Its totient is φ = 23281920.
The previous prime is 68043709. The next prime is 68043713. The reversal of 68043710 is 1734086.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68043713) 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 15 ways as a sum of consecutive naturals, for example, 65354 + ... + 66386.
It is an arithmetic number, because the mean of its divisors is an integer number (4383126).
Almost surely, 268043710 is an apocalyptic number.
68043710 is an abundant number, since it is smaller than the sum of its proper divisors (72216322).
68043710 is a wasteful number, since it uses less digits than its factorization.
68043710 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1988.
The product of its (nonzero) digits is 4032, while the sum is 29.
The square root of 68043710 is about 8248.8611335141. The cubic root of 68043710 is about 408.2529469228.
Adding to 68043710 its reverse (1734086), we get a palindrome (69777796).
The spelling of 68043710 in words is "sixty-eight million, forty-three thousand, seven hundred ten".
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