Base | Representation |
---|---|
bin | 1011001000010111… |
… | …1100000101100100 |
3 | 21201020021010000112 |
4 | 2302011330011210 |
5 | 22104400320114 |
6 | 1212253032152 |
7 | 134020512314 |
oct | 26205740544 |
9 | 7636233015 |
10 | 2987901284 |
11 | 12a3657505 |
12 | 6b4785658 |
13 | 388039634 |
14 | 204b77444 |
15 | 1274a413e |
hex | b217c164 |
2987901284 has 6 divisors (see below), whose sum is σ = 5228827254. Its totient is φ = 1493950640.
The previous prime is 2987901271. The next prime is 2987901331. The reversal of 2987901284 is 4821097892.
It can be written as a sum of positive squares in only one way, i.e., 2967198784 + 20702500 = 54472^2 + 4550^2 .
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373487657 + ... + 373487664.
It is an arithmetic number, because the mean of its divisors is an integer number (871471209).
Almost surely, 22987901284 is an apocalyptic number.
It is an amenable number.
2987901284 is a deficient number, since it is larger than the sum of its proper divisors (2240925970).
2987901284 is a wasteful number, since it uses less digits than its factorization.
2987901284 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 746975325 (or 746975323 counting only the distinct ones).
The product of its (nonzero) digits is 580608, while the sum is 50.
The square root of 2987901284 is about 54661.6985100170. The cubic root of 2987901284 is about 1440.3081394334.
The spelling of 2987901284 in words is "two billion, nine hundred eighty-seven million, nine hundred one thousand, two hundred eighty-four".
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