Base | Representation |
---|---|
bin | 111111011011010011… |
… | …101001111000101001 |
3 | 20111210021110011022011 |
4 | 333123103221320221 |
5 | 2103434042401131 |
6 | 51141514155521 |
7 | 4630451234542 |
oct | 773323517051 |
9 | 214707404264 |
10 | 68103872041 |
11 | 26978951077 |
12 | 11247a22ba1 |
13 | 656466b34a |
14 | 3420c794c9 |
15 | 1b88e1a0b1 |
hex | fdb4e9e29 |
68103872041 has 2 divisors, whose sum is σ = 68103872042. Its totient is φ = 68103872040.
The previous prime is 68103871951. The next prime is 68103872051. The reversal of 68103872041 is 14027830186.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 39752384400 + 28351487641 = 199380^2 + 168379^2 .
It is a cyclic number.
It is not a de Polignac number, because 68103872041 - 211 = 68103869993 is a prime.
It is a super-3 number, since 3×681038720413 (a number of 33 digits) contains 333 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 68103871985 and 68103872003.
It is not a weakly prime, because it can be changed into another prime (68103872051) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34051936020 + 34051936021.
It is an arithmetic number, because the mean of its divisors is an integer number (34051936021).
Almost surely, 268103872041 is an apocalyptic number.
It is an amenable number.
68103872041 is a deficient number, since it is larger than the sum of its proper divisors (1).
68103872041 is an equidigital number, since it uses as much as digits as its factorization.
68103872041 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 64512, while the sum is 40.
The spelling of 68103872041 in words is "sixty-eight billion, one hundred three million, eight hundred seventy-two thousand, forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •