Base | Representation |
---|---|
bin | 1011111100000111… |
… | …01101100001000100 |
3 | 121112201022002202122 |
4 | 11332003231201010 |
5 | 101111411310010 |
6 | 2540013425112 |
7 | 314561663555 |
oct | 57603554104 |
9 | 17481262678 |
10 | 6409869380 |
11 | 279a227812 |
12 | 12aa79b198 |
13 | 7b1c84625 |
14 | 44b42232c |
15 | 277aea855 |
hex | 17e0ed844 |
6409869380 has 48 divisors (see below), whose sum is σ = 14712316416. Its totient is φ = 2335280640.
The previous prime is 6409869313. The next prime is 6409869409. The reversal of 6409869380 is 839689046.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293534 + ... + 314613.
It is an arithmetic number, because the mean of its divisors is an integer number (306506592).
Almost surely, 26409869380 is an apocalyptic number.
It is an amenable number.
6409869380 is an abundant number, since it is smaller than the sum of its proper divisors (8302447036).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6409869380 is a wasteful number, since it uses less digits than its factorization.
6409869380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 608204 (or 608202 counting only the distinct ones).
The product of its (nonzero) digits is 2239488, while the sum is 53.
The square root of 6409869380 is about 80061.6598628832. The cubic root of 6409869380 is about 1857.5894100417.
The spelling of 6409869380 in words is "six billion, four hundred nine million, eight hundred sixty-nine thousand, three hundred eighty".
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