Base | Representation |
---|---|
bin | 1000010000010101… |
… | …0010110010000000 |
3 | 12201102202110022021 |
4 | 2010011102302000 |
5 | 14014242331120 |
6 | 1003520051224 |
7 | 105625343362 |
oct | 20405226200 |
9 | 5642673267 |
10 | 2215980160 |
11 | a37954769 |
12 | 51a163b14 |
13 | 294138184 |
14 | 17043ad32 |
15 | ce826aaa |
hex | 84152c80 |
2215980160 has 32 divisors (see below), whose sum is σ = 5297579100. Its totient is φ = 886391808.
The previous prime is 2215980139. The next prime is 2215980163. The reversal of 2215980160 is 610895122.
It can be written as a sum of positive squares in 2 ways, for example, as 2173051456 + 42928704 = 46616^2 + 6552^2 .
It is a tau number, because it is divible by the number of its divisors (32).
It is not an unprimeable number, because it can be changed into a prime (2215980163) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1730595 + ... + 1731874.
Almost surely, 22215980160 is an apocalyptic number.
2215980160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2215980160 is an abundant number, since it is smaller than the sum of its proper divisors (3081598940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2215980160 is an equidigital number, since it uses as much as digits as its factorization.
2215980160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3462488 (or 3462476 counting only the distinct ones).
The product of its (nonzero) digits is 8640, while the sum is 34.
The square root of 2215980160 is about 47074.1984530804. The cubic root of 2215980160 is about 1303.7328922082.
The spelling of 2215980160 in words is "two billion, two hundred fifteen million, nine hundred eighty thousand, one hundred sixty".
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