Base | Representation |
---|---|
bin | 111111111111000011… |
… | …100011010111000010 |
3 | 20120100002000001122000 |
4 | 333333003203113002 |
5 | 2111201112141121 |
6 | 51321221124430 |
7 | 4651353140400 |
oct | 777703432702 |
9 | 216302001560 |
10 | 68703630786 |
11 | 2715645475a |
12 | 11394859716 |
13 | 662b9b118b |
14 | 347a79c470 |
15 | 1bc18db526 |
hex | fff0e35c2 |
68703630786 has 96 divisors (see below), whose sum is σ = 185323178880. Its totient is φ = 18776130912.
The previous prime is 68703630781. The next prime is 68703630797.
68703630786 is nontrivially palindromic in base 10.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is not an unprimeable number, because it can be changed into a prime (68703630781) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 503601 + ... + 625316.
It is an arithmetic number, because the mean of its divisors is an integer number (1930449780).
Almost surely, 268703630786 is an apocalyptic number.
68703630786 is an abundant number, since it is smaller than the sum of its proper divisors (116619548094).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68703630786 is a wasteful number, since it uses less digits than its factorization.
68703630786 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1128965 (or 1128952 counting only the distinct ones).
The product of its (nonzero) digits is 6096384, while the sum is 54.
The spelling of 68703630786 in words is "sixty-eight billion, seven hundred three million, six hundred thirty thousand, seven hundred eighty-six".
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