Base | Representation |
---|---|
bin | 111101111011000… |
… | …110010000001001 |
3 | 2200101212201000021 |
4 | 331323012100021 |
5 | 4111424333111 |
6 | 251031140441 |
7 | 34513344424 |
oct | 7573062011 |
9 | 2611781007 |
10 | 1038902281 |
11 | 49348472a |
12 | 24bb14721 |
13 | 13730b1a1 |
14 | 9bd969bb |
15 | 61317d71 |
hex | 3dec6409 |
1038902281 has 2 divisors, whose sum is σ = 1038902282. Its totient is φ = 1038902280.
The previous prime is 1038902233. The next prime is 1038902299. The reversal of 1038902281 is 1822098301.
1038902281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1016015625 + 22886656 = 31875^2 + 4784^2 .
It is a cyclic number.
It is not a de Polignac number, because 1038902281 - 29 = 1038901769 is a prime.
It is a super-2 number, since 2×10389022812 = 2158635898934005922, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (1038932281) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519451140 + 519451141.
It is an arithmetic number, because the mean of its divisors is an integer number (519451141).
Almost surely, 21038902281 is an apocalyptic number.
It is an amenable number.
1038902281 is a deficient number, since it is larger than the sum of its proper divisors (1).
1038902281 is an equidigital number, since it uses as much as digits as its factorization.
1038902281 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6912, while the sum is 34.
The square root of 1038902281 is about 32232.0070892273. The cubic root of 1038902281 is about 1012.8028154056.
The spelling of 1038902281 in words is "one billion, thirty-eight million, nine hundred two thousand, two hundred eighty-one".
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