Base | Representation |
---|---|
bin | 10010011111000… |
… | …110011011001101 |
3 | 210121120212202112 |
4 | 102133012123031 |
5 | 1113344031134 |
6 | 50435233405 |
7 | 10454112014 |
oct | 2237063315 |
9 | 717525675 |
10 | 310142669 |
11 | 14a081861 |
12 | 87a48865 |
13 | 4c33c595 |
14 | 2d293a7b |
15 | 1c3641ce |
hex | 127c66cd |
310142669 has 2 divisors, whose sum is σ = 310142670. Its totient is φ = 310142668.
The previous prime is 310142641. The next prime is 310142671. The reversal of 310142669 is 966241013.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 304921444 + 5221225 = 17462^2 + 2285^2 .
It is a cyclic number.
It is not a de Polignac number, because 310142669 - 212 = 310138573 is a prime.
It is a super-2 number, since 2×3101426692 = 192376950268887122, which contains 22 as substring.
Together with 310142671, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (310142629) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155071334 + 155071335.
It is an arithmetic number, because the mean of its divisors is an integer number (155071335).
Almost surely, 2310142669 is an apocalyptic number.
It is an amenable number.
310142669 is a deficient number, since it is larger than the sum of its proper divisors (1).
310142669 is an equidigital number, since it uses as much as digits as its factorization.
310142669 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 7776, while the sum is 32.
The square root of 310142669 is about 17610.8679229617. The cubic root of 310142669 is about 676.8937539590.
The spelling of 310142669 in words is "three hundred ten million, one hundred forty-two thousand, six hundred sixty-nine".
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