Base | Representation |
---|---|
bin | 111000110111111100… |
… | …010100010100100101 |
3 | 12211121221101221201212 |
4 | 320313330110110211 |
5 | 2000031413212101 |
6 | 44015421201205 |
7 | 4261216202333 |
oct | 706774242445 |
9 | 184557357655 |
10 | 61068100901 |
11 | 23998395085 |
12 | ba03700205 |
13 | 59b2b1c662 |
14 | 2d5468ab53 |
15 | 18c63d71bb |
hex | e37f14525 |
61068100901 has 2 divisors, whose sum is σ = 61068100902. Its totient is φ = 61068100900.
The previous prime is 61068100867. The next prime is 61068100903. The reversal of 61068100901 is 10900186016.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 59122408801 + 1945692100 = 243151^2 + 44110^2 .
It is a cyclic number.
It is not a de Polignac number, because 61068100901 - 218 = 61067838757 is a prime.
Together with 61068100903, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (61068100903) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30534050450 + 30534050451.
It is an arithmetic number, because the mean of its divisors is an integer number (30534050451).
Almost surely, 261068100901 is an apocalyptic number.
It is an amenable number.
61068100901 is a deficient number, since it is larger than the sum of its proper divisors (1).
61068100901 is an equidigital number, since it uses as much as digits as its factorization.
61068100901 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2592, while the sum is 32.
Adding to 61068100901 its reverse (10900186016), we get a palindrome (71968286917).
The spelling of 61068100901 in words is "sixty-one billion, sixty-eight million, one hundred thousand, nine hundred one".
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