Base | Representation |
---|---|
bin | 101000100101010… |
… | …010111010010110 |
3 | 1202110011112210011 |
4 | 220211102322112 |
5 | 2343300143210 |
6 | 151321150434 |
7 | 22605155260 |
oct | 5045227226 |
9 | 1673145704 |
10 | 680865430 |
11 | 31a370303 |
12 | 17002b41a |
13 | ab09cb6b |
14 | 665d6b30 |
15 | 3eb92d8a |
hex | 28952e96 |
680865430 has 16 divisors (see below), whose sum is σ = 1400637600. Its totient is φ = 233439552.
The previous prime is 680865421. The next prime is 680865439. The reversal of 680865430 is 34568086.
It is an interprime number because it is at equal distance from previous prime (680865421) and next prime (680865439).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (680865439) 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, 4863255 + ... + 4863394.
It is an arithmetic number, because the mean of its divisors is an integer number (87539850).
Almost surely, 2680865430 is an apocalyptic number.
680865430 is an abundant number, since it is smaller than the sum of its proper divisors (719772170).
680865430 is a wasteful number, since it uses less digits than its factorization.
680865430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9726663.
The product of its (nonzero) digits is 138240, while the sum is 40.
The square root of 680865430 is about 26093.3982072094. The cubic root of 680865430 is about 879.7388300379.
The spelling of 680865430 in words is "six hundred eighty million, eight hundred sixty-five thousand, four hundred thirty".
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