Base | Representation |
---|---|
bin | 111111110010110101… |
… | …110101010101000000 |
3 | 20112210210101220002220 |
4 | 333302311311111000 |
5 | 2110241132122101 |
6 | 51245021011040 |
7 | 4643314260252 |
oct | 776265652500 |
9 | 215723356086 |
10 | 68498707776 |
11 | 27060809aa4 |
12 | 113380b3a80 |
13 | 65c83c2165 |
14 | 345b497cd2 |
15 | 1bad90d636 |
hex | ff2d75540 |
68498707776 has 28 divisors (see below), whose sum is σ = 181236164832. Its totient is φ = 22832902528.
The previous prime is 68498707763. The next prime is 68498707777. The reversal of 68498707776 is 67770789486.
It is a self number, because there is not a number n which added to its sum of digits gives 68498707776.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68498707777) 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, 178381860 + ... + 178382243.
Almost surely, 268498707776 is an apocalyptic number.
It is an amenable number.
68498707776 is an abundant number, since it is smaller than the sum of its proper divisors (112737457056).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68498707776 is a wasteful number, since it uses less digits than its factorization.
68498707776 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 356764118 (or 356764108 counting only the distinct ones).
The product of its (nonzero) digits is 199148544, while the sum is 69.
The spelling of 68498707776 in words is "sixty-eight billion, four hundred ninety-eight million, seven hundred seven thousand, seven hundred seventy-six".
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