Base | Representation |
---|---|
bin | 10010101110000100… |
… | …100100100011010101 |
3 | 1220212211021012011221 |
4 | 102232010210203111 |
5 | 312131134144221 |
6 | 13122311130341 |
7 | 1311050520436 |
oct | 225604444325 |
9 | 56784235157 |
10 | 20100303061 |
11 | 8585108213 |
12 | 3a8b6739b1 |
13 | 1b843c6367 |
14 | d8975548d |
15 | 7c9980541 |
hex | 4ae1248d5 |
20100303061 has 2 divisors, whose sum is σ = 20100303062. Its totient is φ = 20100303060.
The previous prime is 20100303059. The next prime is 20100303121. The reversal of 20100303061 is 16030300102.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 16308822436 + 3791480625 = 127706^2 + 61575^2 .
It is a cyclic number.
It is not a de Polignac number, because 20100303061 - 21 = 20100303059 is a prime.
Together with 20100303059, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20100303031) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050151530 + 10050151531.
It is an arithmetic number, because the mean of its divisors is an integer number (10050151531).
Almost surely, 220100303061 is an apocalyptic number.
It is an amenable number.
20100303061 is a deficient number, since it is larger than the sum of its proper divisors (1).
20100303061 is an equidigital number, since it uses as much as digits as its factorization.
20100303061 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 20100303061 its reverse (16030300102), we get a palindrome (36130603163).
The spelling of 20100303061 in words is "twenty billion, one hundred million, three hundred three thousand, sixty-one".
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