20148981 is an odd 8-digits composite number following 20148980
and preceding 20148982 . In scientific notation, it is written as 2.0148981 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 13432652 positive integers (up to 20148981) that are relatively prime to 20148981.
20148981 has 4 divisors, whose sum is 26865312
The reverse of 20148981 is 18984102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million one hundred forty-eight thousand nine hundred eighty-one
Scientific notation
2.0148981 × 10^7
Engineering notation
2.0148981 × 10^6
Prime Factorization
3 × 6716327
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20148981
Product of the distinct prime numbers
The prime factorization of 20148981 is 3 × 6716327.
Since it has a total of 2 prime factors.
2 , 2 , 90 , 64 , 242 , 781 , 8671 , 6440 , 18552 , 54236 , 784359 , 804568 , 4775504 , 9686611 , 22226844 , 25489874 , 208825580 , 284923 , 1281908403 , 3137961563
n×2
40297962
n×3
60446943
n×4
80595924
n×5
100744905
n÷2
10074490.5
n÷3
6716327
n÷3
5037245.25
n÷5
4029796.2
n2
405981435338361
n3
8.1801122269854E+21
n4
1.648209258394E+29
n5
3.3209737031404E+36
2 √n
4488.7616332347
3 √n
272.11408942985
4 √n
66.998221119928
5 √n
28.896857577728
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20148980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20148981 can be divided by 4 positive divisors.
The sum of these divisors (counting 20148981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110111001011110101
3
Ternary
1101220200012120
4
Quaternary
1030313023311
5
Quinary
20124231411
6
Senary
1555510153
8
Octal
114671365
10
Decimal
20148981
12
Duodecimal
68b8359
16
Hexadecimal
13372f5
20
Vigesimal
65ic91
36
Base36
bzv1x
md5
ccb751424734ba68763e1e02e0ada2b2
sha1
ffe78072cefc36dd3aa2a5e28283574134082ec5
sha256
29fb9bab6af2f9076bc25a93c08f56ef40db3bd9c8445c1c8be5dae266e4a858
sha512
6ff69baacb07ba4bf96af816a2e6afdfd4f4d9ee00a69cf0e21d3e26eb14e60594ed05ef305da270b1e40aa1c47bf8fd9b8496070d1541315d129b2bb0c0767e
ripemd-160
9dbc9bf184c9d2d53a564888b9d65a8332658a28
Diameter
40297962
Circumference
126599781.37384
Area
1.2754282947528E+15
Volume
3.426477397045E+22
Surface area
5.1017131790113E+15
Circumference
126599781.37384
Perimeter
80595924
Area
405981435338361
Diagonal
28494962.198198
Surface area
2435888612030166
Volume
8.1801122269854E+21
Space diagonal
34899058.81274
Perimeter
60446943
Area
1.7579511823395E+14
Altitude
17449529.40637
Surface area
1.7579511823395E+14
Volume
9.6403547109472E+20
Height
9498320.7327326