Base | Representation |
---|---|
bin | 100111101001111… |
… | …0110111001001011 |
3 | 10102201202202210111 |
4 | 1033103312321023 |
5 | 10211113340033 |
6 | 340011255151 |
7 | 44654650513 |
oct | 11723667113 |
9 | 3381682714 |
10 | 1330605643 |
11 | 623101794 |
12 | 31174a4b7 |
13 | 182892823 |
14 | c8a0a843 |
15 | 7bc387cd |
hex | 4f4f6e4b |
1330605643 has 2 divisors, whose sum is σ = 1330605644. Its totient is φ = 1330605642.
The previous prime is 1330605607. The next prime is 1330605697. The reversal of 1330605643 is 3465060331.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1330605643 - 217 = 1330474571 is a prime.
It is a super-2 number, since 2×13306056432 = 3541022754366886898, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (1330605043) 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, 665302821 + 665302822.
It is an arithmetic number, because the mean of its divisors is an integer number (665302822).
Almost surely, 21330605643 is an apocalyptic number.
1330605643 is a deficient number, since it is larger than the sum of its proper divisors (1).
1330605643 is an equidigital number, since it uses as much as digits as its factorization.
1330605643 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 19440, while the sum is 31.
The square root of 1330605643 is about 36477.4676067295. The cubic root of 1330605643 is about 1099.8913509769.
Adding to 1330605643 its reverse (3465060331), we get a palindrome (4795665974).
The spelling of 1330605643 in words is "one billion, three hundred thirty million, six hundred five thousand, six hundred forty-three".
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