Base | Representation |
---|---|
bin | 1000001100110… |
… | …00000001000111 |
3 | 11210102101120020 |
4 | 10012120001013 |
5 | 120101430403 |
6 | 10454110223 |
7 | 1463423040 |
oct | 406300107 |
9 | 153371506 |
10 | 68780103 |
11 | 35908567 |
12 | 1b04b373 |
13 | 113324b2 |
14 | 91c58c7 |
15 | 6089453 |
hex | 4198047 |
68780103 has 16 divisors (see below), whose sum is σ = 108189696. Its totient is φ = 38034720.
The previous prime is 68780093. The next prime is 68780111. The reversal of 68780103 is 30108786.
It is not a de Polignac number, because 68780103 - 210 = 68779079 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68780183) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52176 + ... + 53477.
It is an arithmetic number, because the mean of its divisors is an integer number (6761856).
Almost surely, 268780103 is an apocalyptic number.
68780103 is a deficient number, since it is larger than the sum of its proper divisors (39409593).
68780103 is a wasteful number, since it uses less digits than its factorization.
68780103 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 105694.
The product of its (nonzero) digits is 8064, while the sum is 33.
The square root of 68780103 is about 8293.3770564228. The cubic root of 68780103 is about 409.7204181592.
Adding to 68780103 its reverse (30108786), we get a palindrome (98888889).
The spelling of 68780103 in words is "sixty-eight million, seven hundred eighty thousand, one hundred three".
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