Base | Representation |
---|---|
bin | 1000000000111… |
… | …01101110111001 |
3 | 11200111200010001 |
4 | 10000131232321 |
5 | 114202340044 |
6 | 10400553001 |
7 | 1444310503 |
oct | 400355671 |
9 | 150450101 |
10 | 67230649 |
11 | 34a4a422 |
12 | 1a622761 |
13 | 10c0c165 |
14 | 8d00d73 |
15 | 5d802d4 |
hex | 401dbb9 |
67230649 has 2 divisors, whose sum is σ = 67230650. Its totient is φ = 67230648.
The previous prime is 67230637. The next prime is 67230673. The reversal of 67230649 is 94603276.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 53392249 + 13838400 = 7307^2 + 3720^2 .
It is a cyclic number.
It is not a de Polignac number, because 67230649 - 217 = 67099577 is a prime.
It is a super-2 number, since 2×672306492 = 9039920329922402, which contains 22 as substring.
It is a Chen prime.
It is equal to p3964546 and since 67230649 and 3964546 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 (67230619) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33615324 + 33615325.
It is an arithmetic number, because the mean of its divisors is an integer number (33615325).
Almost surely, 267230649 is an apocalyptic number.
It is an amenable number.
67230649 is a deficient number, since it is larger than the sum of its proper divisors (1).
67230649 is an equidigital number, since it uses as much as digits as its factorization.
67230649 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 54432, while the sum is 37.
The square root of 67230649 is about 8199.4297972481. The cubic root of 67230649 is about 406.6203419268.
The spelling of 67230649 in words is "sixty-seven million, two hundred thirty thousand, six hundred forty-nine".
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