Base | Representation |
---|---|
bin | 101000101010000… |
… | …000100000011001 |
3 | 1202112111022100011 |
4 | 220222000200121 |
5 | 2344104211021 |
6 | 151403441521 |
7 | 22621521646 |
oct | 5052004031 |
9 | 1675438304 |
10 | 682100761 |
11 | 320034441 |
12 | 1705262a1 |
13 | ab413224 |
14 | 66838dcd |
15 | 3ed38de1 |
hex | 28a80819 |
682100761 has 2 divisors, whose sum is σ = 682100762. Its totient is φ = 682100760.
The previous prime is 682100759. The next prime is 682100789. The reversal of 682100761 is 167001286.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 421891600 + 260209161 = 20540^2 + 16131^2 .
It is a cyclic number.
It is not a de Polignac number, because 682100761 - 21 = 682100759 is a prime.
It is a super-2 number, since 2×6821007612 = 930522896313558242, which contains 22 as substring.
Together with 682100759, it forms a pair of twin primes.
It is equal to p35373172 and since 682100761 and 35373172 have the same sum of digits, it is a Honaker prime.
It is not a weakly prime, because it can be changed into another prime (682100791) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341050380 + 341050381.
It is an arithmetic number, because the mean of its divisors is an integer number (341050381).
Almost surely, 2682100761 is an apocalyptic number.
It is an amenable number.
682100761 is a deficient number, since it is larger than the sum of its proper divisors (1).
682100761 is an equidigital number, since it uses as much as digits as its factorization.
682100761 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 4032, while the sum is 31.
The square root of 682100761 is about 26117.0588122017. The cubic root of 682100761 is about 880.2705611757.
The spelling of 682100761 in words is "six hundred eighty-two million, one hundred thousand, seven hundred sixty-one".
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