Base | Representation |
---|---|
bin | 1010110001110111… |
… | …0010101101100111 |
3 | 21110122121120112002 |
4 | 2230131302231213 |
5 | 21411213203142 |
6 | 1155041315515 |
7 | 131463160646 |
oct | 25435625547 |
9 | 7418546462 |
10 | 2893491047 |
11 | 1255333717 |
12 | 689035b9b |
13 | 3716021a5 |
14 | 1d63dd35d |
15 | 11e055a32 |
hex | ac772b67 |
2893491047 has 4 divisors (see below), whose sum is σ = 2912910600. Its totient is φ = 2874071496.
The previous prime is 2893490993. The next prime is 2893491053. The reversal of 2893491047 is 7401943982.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 2893491047 - 212 = 2893486951 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2893490992 and 2893491010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2893451047) 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 in 3 ways as a sum of consecutive naturals, for example, 9709553 + ... + 9709850.
It is an arithmetic number, because the mean of its divisors is an integer number (728227650).
Almost surely, 22893491047 is an apocalyptic number.
2893491047 is a deficient number, since it is larger than the sum of its proper divisors (19419553).
2893491047 is a wasteful number, since it uses less digits than its factorization.
2893491047 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19419552.
The product of its (nonzero) digits is 435456, while the sum is 47.
The square root of 2893491047 is about 53791.1800112249. The cubic root of 2893491047 is about 1424.9754458886.
The spelling of 2893491047 in words is "two billion, eight hundred ninety-three million, four hundred ninety-one thousand, forty-seven".
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