Base | Representation |
---|---|
bin | 11101001001001… |
… | …010011101000101 |
3 | 1021002000210111001 |
4 | 131021022131011 |
5 | 2000132111011 |
6 | 120303413301 |
7 | 15054635035 |
oct | 3511123505 |
9 | 1232023431 |
10 | 488941381 |
11 | 230aa3995 |
12 | 1178b4231 |
13 | 7a3b2736 |
14 | 48d178c5 |
15 | 2cdd17c1 |
hex | 1d24a745 |
488941381 has 2 divisors, whose sum is σ = 488941382. Its totient is φ = 488941380.
The previous prime is 488941373. The next prime is 488941399. The reversal of 488941381 is 183149884.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 298252900 + 190688481 = 17270^2 + 13809^2 .
It is a cyclic number.
It is not a de Polignac number, because 488941381 - 23 = 488941373 is a prime.
It is a super-2 number, since 2×4889413812 = 478127348108374322, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (488941681) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244470690 + 244470691.
It is an arithmetic number, because the mean of its divisors is an integer number (244470691).
Almost surely, 2488941381 is an apocalyptic number.
It is an amenable number.
488941381 is a deficient number, since it is larger than the sum of its proper divisors (1).
488941381 is an equidigital number, since it uses as much as digits as its factorization.
488941381 is an evil number, because the sum of its binary digits is even.
The product of its digits is 221184, while the sum is 46.
The square root of 488941381 is about 22112.0189263667. The cubic root of 488941381 is about 787.8053605738.
The spelling of 488941381 in words is "four hundred eighty-eight million, nine hundred forty-one thousand, three hundred eighty-one".
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