Base | Representation |
---|---|
bin | 111110001101110… |
… | …1000001100000000 |
3 | 12101111012221112112 |
4 | 1330123220030000 |
5 | 13233412223110 |
6 | 543052514452 |
7 | 102506311520 |
oct | 17433501400 |
9 | 5344187475 |
10 | 2087617280 |
11 | 981450841 |
12 | 4a317ba28 |
13 | 2736738c8 |
14 | 15b385680 |
15 | c341d405 |
hex | 7c6e8300 |
2087617280 has 144 divisors (see below), whose sum is σ = 5756427264. Its totient is φ = 710553600.
The previous prime is 2087617253. The next prime is 2087617297. The reversal of 2087617280 is 827167802.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1352189 + ... + 1353731.
Almost surely, 22087617280 is an apocalyptic number.
2087617280 is a gapful number since it is divisible by the number (20) 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 2087617280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2878213632).
2087617280 is an abundant number, since it is smaller than the sum of its proper divisors (3668809984).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2087617280 is a wasteful number, since it uses less digits than its factorization.
2087617280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1722 (or 1708 counting only the distinct ones).
The product of its (nonzero) digits is 75264, while the sum is 41.
The square root of 2087617280 is about 45690.4506434331. The cubic root of 2087617280 is about 1278.0572089630.
The spelling of 2087617280 in words is "two billion, eighty-seven million, six hundred seventeen thousand, two hundred eighty".
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