Base | Representation |
---|---|
bin | 1000000111000… |
… | …11101000000010 |
3 | 11202000212000010 |
4 | 10003203220002 |
5 | 114404304333 |
6 | 10430205350 |
7 | 1454224620 |
oct | 403435002 |
9 | 152025003 |
10 | 68041218 |
11 | 35453413 |
12 | 1a953856 |
13 | 1113409b |
14 | 9072510 |
15 | 5e90563 |
hex | 40e3a02 |
68041218 has 32 divisors (see below), whose sum is σ = 160542720. Its totient is φ = 18812880.
The previous prime is 68041213. The next prime is 68041229. The reversal of 68041218 is 81214086.
It is not an unprimeable number, because it can be changed into a prime (68041213) 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, 24828 + ... + 27431.
It is an arithmetic number, because the mean of its divisors is an integer number (5016960).
Almost surely, 268041218 is an apocalyptic number.
68041218 is an abundant number, since it is smaller than the sum of its proper divisors (92501502).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68041218 is a wasteful number, since it uses less digits than its factorization.
68041218 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 52302.
The product of its (nonzero) digits is 3072, while the sum is 30.
The square root of 68041218 is about 8248.7100809763. The cubic root of 68041218 is about 408.2479629756.
The spelling of 68041218 in words is "sixty-eight million, forty-one thousand, two hundred eighteen".
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