Base | Representation |
---|---|
bin | 1110100011111… |
… | …1111000011101 |
3 | 11020221010201202 |
4 | 3220333320131 |
5 | 111114012234 |
6 | 10021045245 |
7 | 1341110042 |
oct | 350777035 |
9 | 136833652 |
10 | 61079069 |
11 | 31528677 |
12 | 18556825 |
13 | c86717c |
14 | 817d1c9 |
15 | 556777e |
hex | 3a3fe1d |
61079069 has 2 divisors, whose sum is σ = 61079070. Its totient is φ = 61079068.
The previous prime is 61079033. The next prime is 61079071. The reversal of 61079069 is 96097016.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 61042969 + 36100 = 7813^2 + 190^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-61079069 is a prime.
It is a super-2 number, since 2×610790692 = 7461305339813522, which contains 22 as substring.
Together with 61079071, it forms a pair of twin primes.
It is a Chen prime.
It is a plaindrome in base 15.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (61079569) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30539534 + 30539535.
It is an arithmetic number, because the mean of its divisors is an integer number (30539535).
Almost surely, 261079069 is an apocalyptic number.
It is an amenable number.
61079069 is a deficient number, since it is larger than the sum of its proper divisors (1).
61079069 is an equidigital number, since it uses as much as digits as its factorization.
61079069 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 20412, while the sum is 38.
The square root of 61079069 is about 7815.3099106817. The cubic root of 61079069 is about 393.8197295169.
The spelling of 61079069 in words is "sixty-one million, seventy-nine thousand, sixty-nine".
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