Base | Representation |
---|---|
bin | 1011001000010110… |
… | …0110101011111110 |
3 | 21201020002122210002 |
4 | 2302011212223332 |
5 | 22104340014010 |
6 | 1212251114302 |
7 | 134016665624 |
oct | 26205465376 |
9 | 7636078702 |
10 | 2987813630 |
11 | 12a35a766a |
12 | 6b4742992 |
13 | 388008779 |
14 | 204b53514 |
15 | 1274881a5 |
hex | b2166afe |
2987813630 has 16 divisors (see below), whose sum is σ = 5378690304. Its totient is φ = 1194986400.
The previous prime is 2987813629. The next prime is 2987813639. The reversal of 2987813630 is 363187892.
It is a super-2 number, since 2×29878136302 = 17854060575227553800, which contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2987813639) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145904 + ... + 165116.
It is an arithmetic number, because the mean of its divisors is an integer number (336168144).
Almost surely, 22987813630 is an apocalyptic number.
2987813630 is a deficient number, since it is larger than the sum of its proper divisors (2390876674).
2987813630 is a wasteful number, since it uses less digits than its factorization.
2987813630 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34771.
The product of its (nonzero) digits is 435456, while the sum is 47.
The square root of 2987813630 is about 54660.8967178549. The cubic root of 2987813630 is about 1440.2940548533.
The spelling of 2987813630 in words is "two billion, nine hundred eighty-seven million, eight hundred thirteen thousand, six hundred thirty".
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