Base | Representation |
---|---|
bin | 1000001000001… |
… | …01110101110000 |
3 | 11202021222020120 |
4 | 10010011311300 |
5 | 114423300420 |
6 | 10433210240 |
7 | 1455350322 |
oct | 404056560 |
9 | 152258216 |
10 | 68181360 |
11 | 35539735 |
12 | 1aa00980 |
13 | 11182b00 |
14 | 90ab612 |
15 | 5ebbd40 |
hex | 4105d70 |
68181360 has 180 divisors, whose sum is σ = 234589896. Its totient is φ = 16373760.
The previous prime is 68181331. The next prime is 68181383. The reversal of 68181360 is 6318186.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1662940 + ... + 1662980.
Almost surely, 268181360 is an apocalyptic number.
68181360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68181360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117294948).
68181360 is an abundant number, since it is smaller than the sum of its proper divisors (166408536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68181360 is a wasteful number, since it uses less digits than its factorization.
68181360 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 124 (or 64 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 33.
The square root of 68181360 is about 8257.2004941142. The cubic root of 68181360 is about 408.5280552147.
The spelling of 68181360 in words is "sixty-eight million, one hundred eighty-one thousand, three hundred sixty".
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