Base | Representation |
---|---|
bin | 1000001100110… |
… | …10001110000100 |
3 | 11210102211221100 |
4 | 10012122032010 |
5 | 120102222444 |
6 | 10454220100 |
7 | 1463461245 |
oct | 406321604 |
9 | 153384840 |
10 | 68789124 |
11 | 35914318 |
12 | 1b054630 |
13 | 11336631 |
14 | 91c8ccc |
15 | 608be69 |
hex | 419a384 |
68789124 has 72 divisors (see below), whose sum is σ = 183036672. Its totient is φ = 21752640.
The previous prime is 68789117. The next prime is 68789143. The reversal of 68789124 is 42198786.
It is a self number, because there is not a number n which added to its sum of digits gives 68789124.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58567 + ... + 59729.
It is an arithmetic number, because the mean of its divisors is an integer number (2542176).
Almost surely, 268789124 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68789124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91518336).
68789124 is an abundant number, since it is smaller than the sum of its proper divisors (114247548).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68789124 is a wasteful number, since it uses less digits than its factorization.
68789124 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1257 (or 1252 counting only the distinct ones).
The product of its digits is 193536, while the sum is 45.
The square root of 68789124 is about 8293.9209063024. The cubic root of 68789124 is about 409.7383299590.
The spelling of 68789124 in words is "sixty-eight million, seven hundred eighty-nine thousand, one hundred twenty-four".
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