Base | Representation |
---|---|
bin | 1000111110010101100… |
… | …10000110000100000000 |
3 | 1002110220002011011212020 |
4 | 10133022302012010000 |
5 | 20022442232321210 |
6 | 353352431201440 |
7 | 31164033422610 |
oct | 4371262060400 |
9 | 1073802134766 |
10 | 308344807680 |
11 | 10984a672878 |
12 | 4b914076280 |
13 | 230cc92a730 |
14 | 10cd1524a40 |
15 | 804a0b9770 |
hex | 47cac86100 |
308344807680 has 576 divisors, whose sum is σ = 1234974988800. Its totient is φ = 63826034688.
The previous prime is 308344807651. The next prime is 308344807709. The reversal of 308344807680 is 86708443803.
It is an interprime number because it is at equal distance from previous prime (308344807651) and next prime (308344807709).
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18511996 + ... + 18528644.
It is an arithmetic number, because the mean of its divisors is an integer number (2144053800).
Almost surely, 2308344807680 is an apocalyptic number.
308344807680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 308344807680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (617487494400).
308344807680 is an abundant number, since it is smaller than the sum of its proper divisors (926630181120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
308344807680 is a wasteful number, since it uses less digits than its factorization.
308344807680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16746 (or 16732 counting only the distinct ones).
The product of its (nonzero) digits is 3096576, while the sum is 51.
The spelling of 308344807680 in words is "three hundred eight billion, three hundred forty-four million, eight hundred seven thousand, six hundred eighty".
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