Base | Representation |
---|---|
bin | 110010010000110000001… |
… | …1001110111011100000101 |
3 | 220110101120011020110101222 |
4 | 1210201200121313130011 |
5 | 1401134412222233011 |
6 | 22405242402330125 |
7 | 1312036550011445 |
oct | 144414031673405 |
9 | 26411504213358 |
10 | 6907924805381 |
11 | 22236a8510886 |
12 | 936976059945 |
13 | 3b15508c1c52 |
14 | 19c4b98a8125 |
15 | bea570a9ddb |
hex | 64860677705 |
6907924805381 has 2 divisors, whose sum is σ = 6907924805382. Its totient is φ = 6907924805380.
The previous prime is 6907924805377. The next prime is 6907924805387. The reversal of 6907924805381 is 1835084297096.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 6443017656100 + 464907149281 = 2538310^2 + 681841^2 .
It is a cyclic number.
It is not a de Polignac number, because 6907924805381 - 22 = 6907924805377 is a prime.
It is a super-2 number, since 2×69079248053812 (a number of 26 digits) contains 22 as substring.
It is a Sophie Germain prime.
It is a Curzon number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (6907924805387) 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, 3453962402690 + 3453962402691.
It is an arithmetic number, because the mean of its divisors is an integer number (3453962402691).
It is a 2-persistent number, because it is pandigital, and so is 2⋅6907924805381 = 13815849610762, but 3⋅6907924805381 = 20723774416143 is not.
Almost surely, 26907924805381 is an apocalyptic number.
It is an amenable number.
6907924805381 is a deficient number, since it is larger than the sum of its proper divisors (1).
6907924805381 is an equidigital number, since it uses as much as digits as its factorization.
6907924805381 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 26127360, while the sum is 62.
The spelling of 6907924805381 in words is "six trillion, nine hundred seven billion, nine hundred twenty-four million, eight hundred five thousand, three hundred eighty-one".
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