Base | Representation |
---|---|
bin | 1000001000001… |
… | …11001100001000 |
3 | 11202022020211022 |
4 | 10010013030020 |
5 | 114423440023 |
6 | 10433252012 |
7 | 1455402410 |
oct | 404071410 |
9 | 152266738 |
10 | 68186888 |
11 | 35542900 |
12 | 1aa04008 |
13 | 11185493 |
14 | 90ad640 |
15 | 5ebd7c8 |
hex | 4107308 |
68186888 has 96 divisors (see below), whose sum is σ = 166622400. Its totient is φ = 25576320.
The previous prime is 68186879. The next prime is 68186903. The reversal of 68186888 is 88868186.
It is a super-3 number, since 3×681868883 (a number of 24 digits) contains 333 as substring.
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, 196331 + ... + 196677.
It is an arithmetic number, because the mean of its divisors is an integer number (1735650).
Almost surely, 268186888 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 68186888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83311200).
68186888 is an abundant number, since it is smaller than the sum of its proper divisors (98435512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68186888 is a wasteful number, since it uses less digits than its factorization.
68186888 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 411 (or 396 counting only the distinct ones).
The product of its digits is 1179648, while the sum is 53.
The square root of 68186888 is about 8257.5352254774. The cubic root of 68186888 is about 408.5390957789.
The spelling of 68186888 in words is "sixty-eight million, one hundred eighty-six thousand, eight hundred eighty-eight".
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