Base | Representation |
---|---|
bin | 1011010111001011… |
… | …0101001111101101 |
3 | 21212120010010100102 |
4 | 2311302311033231 |
5 | 22221300021024 |
6 | 1222352040445 |
7 | 135403404221 |
oct | 26562651755 |
9 | 7776103312 |
10 | 3050001389 |
11 | 1325712206 |
12 | 711533125 |
13 | 397b70466 |
14 | 20d100781 |
15 | 12cb6e1ae |
hex | b5cb53ed |
3050001389 has 2 divisors, whose sum is σ = 3050001390. Its totient is φ = 3050001388.
The previous prime is 3050001347. The next prime is 3050001421. The reversal of 3050001389 is 9831000503.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 2456689225 + 593312164 = 49565^2 + 24358^2 .
It is an emirp because it is prime and its reverse (9831000503) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-3050001389 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (3050001329) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1525000694 + 1525000695.
It is an arithmetic number, because the mean of its divisors is an integer number (1525000695).
Almost surely, 23050001389 is an apocalyptic number.
It is an amenable number.
3050001389 is a deficient number, since it is larger than the sum of its proper divisors (1).
3050001389 is an equidigital number, since it uses as much as digits as its factorization.
3050001389 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3240, while the sum is 29.
The square root of 3050001389 is about 55226.8176613500. The cubic root of 3050001389 is about 1450.2181818336.
The spelling of 3050001389 in words is "three billion, fifty million, one thousand, three hundred eighty-nine".
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