Base | Representation |
---|---|
bin | 1010001011001000… |
… | …1101001000100101 |
3 | 21001022222201201100 |
4 | 2202302031020211 |
5 | 21043123214424 |
6 | 1131000150313 |
7 | 124451466114 |
oct | 24262151045 |
9 | 7038881640 |
10 | 2731069989 |
11 | 118168833a |
12 | 642768399 |
13 | 346a7475b |
14 | 1bc9ddc7b |
15 | 10eb70dc9 |
hex | a2c8d225 |
2731069989 has 12 divisors (see below), whose sum is σ = 3945666816. Its totient is φ = 1820349672.
The previous prime is 2731069981. The next prime is 2731070047. The reversal of 2731069989 is 9899601372.
It is not a de Polignac number, because 2731069989 - 23 = 2731069981 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2731069981) 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 in 11 ways as a sum of consecutive naturals, for example, 22012 + ... + 77114.
It is an arithmetic number, because the mean of its divisors is an integer number (328805568).
Almost surely, 22731069989 is an apocalyptic number.
It is an amenable number.
2731069989 is a deficient number, since it is larger than the sum of its proper divisors (1214596827).
2731069989 is a wasteful number, since it uses less digits than its factorization.
2731069989 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 60616 (or 60613 counting only the distinct ones).
The product of its (nonzero) digits is 1469664, while the sum is 54.
The square root of 2731069989 is about 52259.6401537554. The cubic root of 2731069989 is about 1397.7975555246.
The spelling of 2731069989 in words is "two billion, seven hundred thirty-one million, sixty-nine thousand, nine hundred eighty-nine".
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