Base | Representation |
---|---|
bin | 100000000101001110… |
… | …1100100100011001001 |
3 | 20120211102002122220110 |
4 | 1000022131210203021 |
5 | 2112044110011102 |
6 | 51352214544533 |
7 | 4656165562401 |
oct | 1001235444311 |
9 | 216742078813 |
10 | 68895000777 |
11 | 27244482879 |
12 | 11428968149 |
13 | 665c536365 |
14 | 3497d75801 |
15 | 1bd35dd86c |
hex | 100a7648c9 |
68895000777 has 8 divisors (see below), whose sum is σ = 92445097216. Its totient is φ = 45637452432.
The previous prime is 68895000721. The next prime is 68895000799. The reversal of 68895000777 is 77700059886.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 68895000777 - 222 = 68890806473 is a prime.
It is a super-2 number, since 2×688950007772 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68895010777) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73136473 + ... + 73137414.
It is an arithmetic number, because the mean of its divisors is an integer number (11555637152).
Almost surely, 268895000777 is an apocalyptic number.
It is an amenable number.
68895000777 is a deficient number, since it is larger than the sum of its proper divisors (23550096439).
68895000777 is a wasteful number, since it uses less digits than its factorization.
68895000777 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 146274047.
The product of its (nonzero) digits is 5927040, while the sum is 57.
The spelling of 68895000777 in words is "sixty-eight billion, eight hundred ninety-five million, seven hundred seventy-seven", and thus it is an aban number.
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