Base | Representation |
---|---|
bin | 111000110111100000… |
… | …010110001110101001 |
3 | 12211121102121102211011 |
4 | 320313200112032221 |
5 | 2000023024044211 |
6 | 44015000103521 |
7 | 4261066653523 |
oct | 706740261651 |
9 | 184542542734 |
10 | 61060768681 |
11 | 239942372a0 |
12 | ba01164ba1 |
13 | 59b1453173 |
14 | 2d536dca13 |
15 | 18c5939921 |
hex | e378163a9 |
61060768681 has 16 divisors (see below), whose sum is σ = 68275468800. Its totient is φ = 54124905600.
The previous prime is 61060768607. The next prime is 61060768693. The reversal of 61060768681 is 18686706016.
61060768681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 61060768681 - 27 = 61060768553 is a prime.
It is a super-2 number, since 2×610607686812 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (61060768381) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 769000 + ... + 844678.
It is an arithmetic number, because the mean of its divisors is an integer number (4267216800).
Almost surely, 261060768681 is an apocalyptic number.
It is an amenable number.
61060768681 is a deficient number, since it is larger than the sum of its proper divisors (7214700119).
61060768681 is a wasteful number, since it uses less digits than its factorization.
61060768681 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 77520.
The product of its (nonzero) digits is 580608, while the sum is 49.
The spelling of 61060768681 in words is "sixty-one billion, sixty million, seven hundred sixty-eight thousand, six hundred eighty-one".
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