Base | Representation |
---|---|
bin | 101000100100110… |
… | …100011111110000 |
3 | 1202102221012220000 |
4 | 220210310133300 |
5 | 2343232201343 |
6 | 151314350000 |
7 | 22604126124 |
oct | 5044643760 |
9 | 1672835800 |
10 | 680740848 |
11 | 31a295747 |
12 | 16bb8b300 |
13 | ab058248 |
14 | 665a3584 |
15 | 3eb6aed3 |
hex | 289347f0 |
680740848 has 100 divisors (see below), whose sum is σ = 1989080280. Its totient is φ = 224747136.
The previous prime is 680740847. The next prime is 680740849. The reversal of 680740848 is 848047086.
It is an interprime number because it is at equal distance from previous prime (680740847) and next prime (680740849).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (680740847) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 136218 + ... + 141126.
Almost surely, 2680740848 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 680740848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (994540140).
680740848 is an abundant number, since it is smaller than the sum of its proper divisors (1308339432).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
680740848 is a wasteful number, since it uses less digits than its factorization.
680740848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5036 (or 5021 counting only the distinct ones).
The product of its (nonzero) digits is 344064, while the sum is 45.
The square root of 680740848 is about 26091.0108658135. The cubic root of 680740848 is about 879.6851697484.
The spelling of 680740848 in words is "six hundred eighty million, seven hundred forty thousand, eight hundred forty-eight".
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