Base | Representation |
---|---|
bin | 111111101011000010… |
… | …110010100100100001 |
3 | 20112110200020111020002 |
4 | 333223002302210201 |
5 | 2110004134333000 |
6 | 51224025025345 |
7 | 4640135306423 |
oct | 775302624441 |
9 | 215420214202 |
10 | 68367886625 |
11 | 26aa3987145 |
12 | 11300325255 |
13 | 65a72799ac |
14 | 3447d62813 |
15 | 1ba21bb8d5 |
hex | feb0b2921 |
68367886625 has 16 divisors (see below), whose sum is σ = 86933001168. Its totient is φ = 53662336000.
The previous prime is 68367886571. The next prime is 68367886627. The reversal of 68367886625 is 52668876386.
68367886625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 8 ways, for example, as 18957709969 + 49410176656 = 137687^2 + 222284^2 .
It is not a de Polignac number, because 68367886625 - 212 = 68367882529 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68367886627) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5153216 + ... + 5166465.
It is an arithmetic number, because the mean of its divisors is an integer number (5433312573).
Almost surely, 268367886625 is an apocalyptic number.
It is an amenable number.
68367886625 is a deficient number, since it is larger than the sum of its proper divisors (18565114543).
68367886625 is a wasteful number, since it uses less digits than its factorization.
68367886625 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10319749 (or 10319739 counting only the distinct ones).
The product of its digits is 139345920, while the sum is 65.
The spelling of 68367886625 in words is "sixty-eight billion, three hundred sixty-seven million, eight hundred eighty-six thousand, six hundred twenty-five".
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