2887989 is an odd 7-digits composite number following 2887988
and preceding 2887990 . In scientific notation, it is written as 2.887989 × 10^6.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 1777200 positive integers (up to 2887989) that are relatively prime to 2887989.
2887989 has 8 divisors, whose sum is 4146912
The reverse of 2887989 is 9897882
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 51
Digital Root 6
Name
two million eight hundred eighty-seven thousand nine hundred eighty-nine
Scientific notation
2.887989 × 10^6
Engineering notation
2.887989 × 10^6
Prime Factorization
3 × 13 × 74051
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2887989
Product of the distinct prime numbers
The prime factorization of 2887989 is 3 × 13 × 74051.
Since it has a total of 3 prime factors.
3 , 1 , 13 , 25 , 246 , 476 , 4858 , 6121 , 25095 , 18082 , 554523 , 847310 , 6700996 , 8855618 , 93709345 , 18341147 , 541000157 , 91925121 , 1041930473 , 231361507
n×2
5775978
n×3
8663967
n×4
11551956
n×5
14439945
n÷2
1443994.5
n÷3
962663
n÷3
721997.25
n÷5
577597.8
n2
8340480464121
n3
2.4087215835096E+19
n4
6.9563614372384E+25
n5
2.0089895310769E+32
2 √n
1699.4084264826
3 √n
142.40716637439
4 √n
41.223881749328
5 √n
19.593819679251
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2887988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2887989 can be divided by 8 positive divisors.
The sum of these divisors (counting 2887989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1011000001000100110101
3
Ternary
12102201120120
4
Quaternary
23001010311
5
Quinary
1214403424
6
Senary
141522153
8
Octal
13010465
10
Decimal
2887989
12
Duodecimal
b73359
16
Hexadecimal
2c1135
20
Vigesimal
i0jj9
36
Base36
1pwdx
md5
2fc0a8caba50ffbcd9f671ddb42a5a52
sha1
ee5f11385ffef855c709e537a5d1ae12e5c26fa4
sha256
d54e4458ff6d791a656c8658d83241236bccb9ad41ad21ced74a49ddbdbd3730
sha512
783230be5d3a70bdf1f4aae2f85459e025b8f395bf547472abb71254eb36d2a85f4a1600fcd034b6d08bd417c7969cb873c724af1a93b121c47f058b39136945
ripemd-160
087ae220db675716e94e5baff20b33fa19c7ffa0
Diameter
5775978
Circumference
18145770.052096
Area
26202392153492
Volume
1.0089629375063E+20
Surface area
1.0480956861397E+14
Circumference
18145770.052096
Perimeter
11551956
Area
8340480464121
Diagonal
4084233.2117843
Surface area
50042882784726
Volume
2.4087215835096E+19
Space diagonal
5002143.6797
Perimeter
8663967
Area
3611533980848.3
Altitude
2501071.83985
Surface area
3611533980848.3
Volume
2.8387056094834E+18
Height
1361411.0705948