Base | Representation |
---|---|
bin | 100000000011001011… |
… | …1010011101100010000 |
3 | 20120122121201202120101 |
4 | 1000012113103230100 |
5 | 2111424010000000 |
6 | 51341321222144 |
7 | 4654402320664 |
oct | 1000627235420 |
9 | 216577652511 |
10 | 68826250000 |
11 | 27209695352 |
12 | 11409931954 |
13 | 664b214321 |
14 | 348cb9a8a4 |
15 | 1bcc55ce6a |
hex | 10065d3b10 |
68826250000 has 80 divisors (see below), whose sum is σ = 166691174832. Its totient is φ = 27530000000.
The previous prime is 68826249991. The next prime is 68826250007. The reversal of 68826250000 is 5262886.
It can be written as a sum of positive squares in 8 ways, for example, as 52064286976 + 16761963024 = 228176^2 + 129468^2 .
It is a tau number, because it is divible by the number of its divisors (80).
It is not an unprimeable number, because it can be changed into a prime (68826250007) 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, 1222470 + ... + 1277530.
Almost surely, 268826250000 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68826250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83345587416).
68826250000 is an abundant number, since it is smaller than the sum of its proper divisors (97864924832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68826250000 is an frugal number, since it uses more digits than its factorization.
68826250000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 55104 (or 55068 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 37.
The spelling of 68826250000 in words is "sixty-eight billion, eight hundred twenty-six million, two hundred fifty thousand".
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