Base | Representation |
---|---|
bin | 1000001011001… |
… | …10011110010000 |
3 | 11210001002012010 |
4 | 10011212132100 |
5 | 120023432133 |
6 | 10445502520 |
7 | 1461616302 |
oct | 405463620 |
9 | 153032163 |
10 | 68577168 |
11 | 3578a050 |
12 | 1ab71a40 |
13 | 1129100a |
14 | 9171972 |
15 | 6049263 |
hex | 4166790 |
68577168 has 80 divisors (see below), whose sum is σ = 201701376. Its totient is φ = 19873920.
The previous prime is 68577161. The next prime is 68577181. The reversal of 68577168 is 86177586.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is not an unprimeable number, because it can be changed into a prime (68577161) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9321 + ... + 14967.
Almost surely, 268577168 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 68577168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100850688).
68577168 is an abundant number, since it is smaller than the sum of its proper divisors (133124208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68577168 is a wasteful number, since it uses less digits than its factorization.
68577168 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5692 (or 5686 counting only the distinct ones).
The product of its digits is 564480, while the sum is 48.
The square root of 68577168 is about 8281.1332557809. The cubic root of 68577168 is about 409.3170625464.
The spelling of 68577168 in words is "sixty-eight million, five hundred seventy-seven thousand, one hundred sixty-eight".
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