Base | Representation |
---|---|
bin | 111111101101110101… |
… | …100010110011000110 |
3 | 20112120221102011221000 |
4 | 333231311202303012 |
5 | 2110103133331143 |
6 | 51232421234130 |
7 | 4641244513200 |
oct | 775565426306 |
9 | 215527364830 |
10 | 68414745798 |
11 | 27018382133 |
12 | 11313b62946 |
13 | 65b3ba5609 |
14 | 345027d770 |
15 | 1ba6375bd3 |
hex | fedd62cc6 |
68414745798 has 48 divisors (see below), whose sum is σ = 176854451760. Its totient is φ = 19547069472.
The previous prime is 68414745781. The next prime is 68414745809. The reversal of 68414745798 is 89754741486.
68414745798 is a `hidden beast` number, since 6 + 84 + 14 + 7 + 457 + 98 = 666.
It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (63).
It is a congruent number.
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, 12925311 + ... + 12930602.
It is an arithmetic number, because the mean of its divisors is an integer number (3684467745).
Almost surely, 268414745798 is an apocalyptic number.
68414745798 is an abundant number, since it is smaller than the sum of its proper divisors (108439705962).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68414745798 is a wasteful number, since it uses less digits than its factorization.
68414745798 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25855938 (or 25855925 counting only the distinct ones).
The product of its digits is 54190080, while the sum is 63.
The spelling of 68414745798 in words is "sixty-eight billion, four hundred fourteen million, seven hundred forty-five thousand, seven hundred ninety-eight".
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