Base | Representation |
---|---|
bin | 1011010010101011… |
… | …1001001011101101 |
3 | 21211020122000201002 |
4 | 2310222321023231 |
5 | 22201433040044 |
6 | 1220435530045 |
7 | 135054202016 |
oct | 26452711355 |
9 | 7736560632 |
10 | 3031143149 |
11 | 1316001791 |
12 | 707159925 |
13 | 393c99938 |
14 | 20a7d200d |
15 | 12b19674e |
hex | b4ab92ed |
3031143149 has 2 divisors, whose sum is σ = 3031143150. Its totient is φ = 3031143148.
The previous prime is 3031143139. The next prime is 3031143209. The reversal of 3031143149 is 9413411303.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1774936900 + 1256206249 = 42130^2 + 35443^2 .
It is an emirp because it is prime and its reverse (9413411303) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 3031143149 - 224 = 3014365933 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (3031143109) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515571574 + 1515571575.
It is an arithmetic number, because the mean of its divisors is an integer number (1515571575).
Almost surely, 23031143149 is an apocalyptic number.
It is an amenable number.
3031143149 is a deficient number, since it is larger than the sum of its proper divisors (1).
3031143149 is an equidigital number, since it uses as much as digits as its factorization.
3031143149 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3888, while the sum is 29.
The square root of 3031143149 is about 55055.8184845162. The cubic root of 3031143149 is about 1447.2230878342.
The spelling of 3031143149 in words is "three billion, thirty-one million, one hundred forty-three thousand, one hundred forty-nine".
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