Base | Representation |
---|---|
bin | 111111101101100011… |
… | …011000100011000110 |
3 | 20112120121110022122101 |
4 | 333231203120203012 |
5 | 2110100424011342 |
6 | 51232131222314 |
7 | 4641156165025 |
oct | 775543304306 |
9 | 215517408571 |
10 | 68409985222 |
11 | 27015720477 |
12 | 1131244799a |
13 | 65b2bc97c7 |
14 | 344d7a08bc |
15 | 1ba5c353b7 |
hex | fed8d88c6 |
68409985222 has 8 divisors (see below), whose sum is σ = 108015766200. Its totient is φ = 32404729824.
The previous prime is 68409985219. The next prime is 68409985223. The reversal of 68409985222 is 22258990486.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-3 number, since 3×684099852223 (a number of 33 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68409985223) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900131347 + ... + 900131422.
It is an arithmetic number, because the mean of its divisors is an integer number (13501970775).
Almost surely, 268409985222 is an apocalyptic number.
68409985222 is a deficient number, since it is larger than the sum of its proper divisors (39605780978).
68409985222 is a wasteful number, since it uses less digits than its factorization.
68409985222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1800262790.
The product of its (nonzero) digits is 4976640, while the sum is 55.
The spelling of 68409985222 in words is "sixty-eight billion, four hundred nine million, nine hundred eighty-five thousand, two hundred twenty-two".
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