2989905 is an odd 7-digits composite number following 2989904
and preceding 2989906 . In scientific notation, it is written as 2.989905 × 10^6.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 1560320 positive integers (up to 2989905) that are relatively prime to 2989905.
2989905 has 8 divisors, whose sum is 3257856
The reverse of 2989905 is 5099892
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 42
Digital Root 6
Name
two million nine hundred eighty-nine thousand nine hundred five
Scientific notation
2.989905 × 10^6
Engineering notation
2.989905 × 10^6
Prime Factorization
15 × 47 × 4241
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2989905
Product of the distinct prime numbers
The prime factorization of 2989905 is 15 × 47 × 4241.
Since it has a total of 3 prime factors.
2 , 9 , 44 , 8 , 946 , 687 , 9947 , 4761 , 20057 , 21319 , 498814 , 718190 , 4233555 , 4868502 , 68988301 , 80585896 , 742505471 , 266749894 , 9895045082 , 7764899337
n×2
5979810
n×3
8969715
n×4
11959620
n×5
14949525
n÷2
1494952.5
n÷3
996635
n÷3
747476.25
n÷5
597981
n2
8939531909025
n3
2.6728351152453E+19
n4
7.9915230752476E+25
n5
2.3893894800298E+32
2 √n
1729.1341764016
3 √n
144.06300290933
4 √n
41.582859165786
5 √n
19.730199558572
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
-2989904
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 2989905 can be divided by 8 positive divisors.
The sum of these divisors (counting 2989905) is 1, the average is 0.125.
Base
System
Value
2
Binary
1011011001111101010001
3
Ternary
12121220101020
4
Quaternary
23121331101
5
Quinary
1231134110
6
Senary
144030053
8
Octal
13317521
10
Decimal
2989905
12
Duodecimal
1002329
16
Hexadecimal
2d9f51
20
Vigesimal
idef5
36
Base36
1s30x
md5
dd2ef494d4f3e6b7e5e986871cb3bc9f
sha1
d36cfd27b253d1d08a3c9d7b99d8fa99ff62590a
sha256
c41d43d8fa0ad68d162039d6fc9b1e9cfe389f5d6755ffcd677278b9efdac2d2
sha512
4a9f41b1853b304af7d258c8711a296a788732993681c5aa3e1c60e466b9afcf857d0d37e8a46a6ec5421a1d3d5396cd207f6e440b8419ca6ae78940a4f4c286
ripemd-160
1eb90f2e4961de33c73d545083be7d7796561094
Diameter
5979810
Circumference
18786127.165863
Area
28084367771924
Volume
1.1195945549749E+20
Surface area
1.123374710877E+14
Circumference
18786127.165863
Perimeter
11959620
Area
8939531909025
Diagonal
4228364.2012071
Surface area
53637191454150
Volume
2.6728351152453E+19
Space diagonal
5178667.3698042
Perimeter
8969715
Area
3870930865578.6
Altitude
2589333.6849021
Surface area
3870930865578.6
Volume
3.1499663916392E+18
Height
1409454.7337357