2981805 is an odd 7-digits composite number following 2981804
and preceding 2981806 . In scientific notation, it is written as 2.981805 × 10^6.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 1577600 positive integers (up to 2981805) that are relatively prime to 2981805.
2981805 has 16 divisors, whose sum is 4809024
The reverse of 2981805 is 5081892
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 33
Digital Root 6
Name
two million nine hundred eighty-one thousand eight hundred five
Scientific notation
2.981805 × 10^6
Engineering notation
2.981805 × 10^6
Prime Factorization
3 × 5 × 137 × 1451
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2981805
Product of the distinct prime numbers
The prime factorization of 2981805 is 3 × 5 × 137 × 1451.
Since it has a total of 4 prime factors.
8 , 2 , 34 , 57 , 365 , 890 , 4830 , 2342 , 20909 , 10271 , 324728 , 451947 , 8597537 , 8038568 , 46313116 , 90935315 , 947986352 , 96461477 , 4988513776 , 9242396207
n×2
5963610
n×3
8945415
n×4
11927220
n×5
14909025
n÷2
1490902.5
n÷3
993935
n÷3
745451.25
n÷5
596361
n2
8891161058025
n3
2.6511708498624E+19
n4
7.905274495974E+25
n5
2.3571987018468E+32
2 √n
1726.7903752338
3 √n
143.93279078134
4 √n
41.554667309868
5 √n
19.719497674665
1 , 3 , 5 , 15 , 137 , 411 , 685 , 1451 , 2055 , 4353 , 7255 , 21765 , 198787 , 596361 , 993935 , 2981805
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2981804
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2981805 can be divided by 16 positive divisors.
The sum of these divisors (counting 2981805) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1011010111111110101101
3
Ternary
12121111021020
4
Quaternary
23113332231
5
Quinary
1230404210
6
Senary
143524353
8
Octal
13277655
10
Decimal
2981805
12
Duodecimal
bb96b9
16
Hexadecimal
2d7fad
20
Vigesimal
icea5
36
Base36
1rwrx
md5
db52dfa97712f746f3794546107753be
sha1
96f9826677df936c02c0bc106548ced0fc21413e
sha256
dc6cf980e6d1ec85185abf13024ccf49cc546791a580eea9da0f484481e29cff
sha512
2a8ec8009ea68fdd8598634788e27ef2715986e59d5f2195a61a574c5a0ffaf6b159093eda0fd4036fde96df1d69394900aad84d6fec6f71d6f0ae7da085056e
ripemd-160
eda1f0df984ecb62b3b5cd3838ef57555c71583a
Diameter
5963610
Circumference
18735233.364875
Area
27932406261775
Volume
1.1105198487119E+20
Surface area
1.117296250471E+14
Circumference
18735233.364875
Perimeter
11927220
Area
8891161058025
Diagonal
4216909.0713519
Surface area
53346966348150
Volume
2.6511708498624E+19
Space diagonal
5164637.7582629
Perimeter
8945415
Area
3849985672694.3
Altitude
2582318.8791315
Surface area
3849985672694.3
Volume
3.1244348100364E+18
Height
1405636.3571173