Base | Representation |
---|---|
bin | 111110001110100… |
… | …0010010000100100 |
3 | 12101111220200121200 |
4 | 1330131002100210 |
5 | 13234011024322 |
6 | 543104442500 |
7 | 102512406234 |
oct | 17435022044 |
9 | 5344820550 |
10 | 2087986212 |
11 | 981682a44 |
12 | 4a3319430 |
13 | 273772800 |
14 | 15b43dcc4 |
15 | c34928ac |
hex | 7c742424 |
2087986212 has 54 divisors (see below), whose sum is σ = 5715209682. Its totient is φ = 642455424.
The previous prime is 2087986181. The next prime is 2087986249. The reversal of 2087986212 is 2126897802.
It can be written as a sum of positive squares in 3 ways, for example, as 117158976 + 1970827236 = 10824^2 + 44394^2 .
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 17 ways as a sum of consecutive naturals, for example, 165513 + ... + 177680.
Almost surely, 22087986212 is an apocalyptic number.
It is an amenable number.
2087986212 is an abundant number, since it is smaller than the sum of its proper divisors (3627223470).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2087986212 is a wasteful number, since it uses less digits than its factorization.
2087986212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 343229 (or 343211 counting only the distinct ones).
The product of its (nonzero) digits is 193536, while the sum is 45.
The square root of 2087986212 is about 45694.4877638430. The cubic root of 2087986212 is about 1278.1324923069.
The spelling of 2087986212 in words is "two billion, eighty-seven million, nine hundred eighty-six thousand, two hundred twelve".
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