Base | Representation |
---|---|
bin | 1000000111110… |
… | …01101111101110 |
3 | 11202012110021211 |
4 | 10003321233232 |
5 | 114420204242 |
6 | 10432145034 |
7 | 1455053023 |
oct | 403715756 |
9 | 152173254 |
10 | 68131822 |
11 | 355054a0 |
12 | 1a99817a |
13 | 111663b5 |
14 | 909754a |
15 | 5eac317 |
hex | 40f9bee |
68131822 has 32 divisors (see below), whose sum is σ = 114027264. Its totient is φ = 30273600.
The previous prime is 68131799. The next prime is 68131879. The reversal of 68131822 is 22813186.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242322 + ... + 242602.
It is an arithmetic number, because the mean of its divisors is an integer number (3563352).
Almost surely, 268131822 is an apocalyptic number.
68131822 is a deficient number, since it is larger than the sum of its proper divisors (45895442).
68131822 is a wasteful number, since it uses less digits than its factorization.
68131822 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 504.
The product of its digits is 4608, while the sum is 31.
The square root of 68131822 is about 8254.2002641080. The cubic root of 68131822 is about 408.4290908932.
The spelling of 68131822 in words is "sixty-eight million, one hundred thirty-one thousand, eight hundred twenty-two".
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