Base | Representation |
---|---|
bin | 1000001000100… |
… | …01111001111100 |
3 | 11202101111000221 |
4 | 10010101321330 |
5 | 114431341110 |
6 | 10434231124 |
7 | 1455644362 |
oct | 404217174 |
9 | 152344027 |
10 | 68230780 |
11 | 35572882 |
12 | 1aa254a4 |
13 | 1119c457 |
14 | 90c1632 |
15 | 5ecb7da |
hex | 4111e7c |
68230780 has 12 divisors (see below), whose sum is σ = 143284680. Its totient is φ = 27292304.
The previous prime is 68230777. The next prime is 68230801. The reversal of 68230780 is 8703286.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1705750 + ... + 1705789.
It is an arithmetic number, because the mean of its divisors is an integer number (11940390).
Almost surely, 268230780 is an apocalyptic number.
It is an amenable number.
68230780 is an abundant number, since it is smaller than the sum of its proper divisors (75053900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68230780 is a wasteful number, since it uses less digits than its factorization.
68230780 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3411548 (or 3411546 counting only the distinct ones).
The product of its (nonzero) digits is 16128, while the sum is 34.
The square root of 68230780 is about 8260.1924917038. The cubic root of 68230780 is about 408.6267360490.
It can be divided in two parts, 682 and 30780, that multiplied together give a triangular number (20991960 = T6479).
The spelling of 68230780 in words is "sixty-eight million, two hundred thirty thousand, seven hundred eighty".
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