Base | Representation |
---|---|
bin | 11101101100000101110… |
… | …00100110000000000011 |
3 | 10121112001201222212211012 |
4 | 32312002320212000003 |
5 | 113203132344413242 |
6 | 2100343502111135 |
7 | 133462051322636 |
oct | 16660270460003 |
9 | 3545051885735 |
10 | 1020103122947 |
11 | 363694689797 |
12 | 14585257b4ab |
13 | 7527013b56c |
14 | 375322d3c1d |
15 | 1b8065a2282 |
hex | ed82e26003 |
1020103122947 has 2 divisors, whose sum is σ = 1020103122948. Its totient is φ = 1020103122946.
The previous prime is 1020103122889. The next prime is 1020103122991. The reversal of 1020103122947 is 7492213010201.
It is a strong prime.
It is an emirp because it is prime and its reverse (7492213010201) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1020103122947 - 210 = 1020103121923 is a prime.
It is a super-2 number, since 2×10201031229472 (a number of 25 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (1020103122347) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510051561473 + 510051561474.
It is an arithmetic number, because the mean of its divisors is an integer number (510051561474).
Almost surely, 21020103122947 is an apocalyptic number.
1020103122947 is a deficient number, since it is larger than the sum of its proper divisors (1).
1020103122947 is an equidigital number, since it uses as much as digits as its factorization.
1020103122947 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 6048, while the sum is 32.
The spelling of 1020103122947 in words is "one trillion, twenty billion, one hundred three million, one hundred twenty-two thousand, nine hundred forty-seven".
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