Base | Representation |
---|---|
bin | 1000001010111… |
… | …11011001011100 |
3 | 11202222121102210 |
4 | 10011133121130 |
5 | 120022020223 |
6 | 10445120420 |
7 | 1461435642 |
oct | 405373134 |
9 | 152877383 |
10 | 68548188 |
11 | 3576a2a5 |
12 | 1ab59110 |
13 | 11280a77 |
14 | 9165192 |
15 | 6040893 |
hex | 415f65c |
68548188 has 48 divisors (see below), whose sum is σ = 167650560. Its totient is φ = 21757824.
The previous prime is 68548171. The next prime is 68548189. The reversal of 68548188 is 88184586.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68548189) 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, 84328 + ... + 85136.
It is an arithmetic number, because the mean of its divisors is an integer number (3492720).
Almost surely, 268548188 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 68548188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83825280).
68548188 is an abundant number, since it is smaller than the sum of its proper divisors (99102372).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68548188 is a wasteful number, since it uses less digits than its factorization.
68548188 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1146 (or 1144 counting only the distinct ones).
The product of its digits is 491520, while the sum is 48.
The square root of 68548188 is about 8279.3833103680. The cubic root of 68548188 is about 409.2593967074.
The spelling of 68548188 in words is "sixty-eight million, five hundred forty-eight thousand, one hundred eighty-eight".
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