20051381 is an odd 8-digits composite number following 20051380
and preceding 20051382 . In scientific notation, it is written as 2.0051381 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 16175808 positive integers (up to 20051381) that are relatively prime to 20051381.
20051381 has 8 divisors, whose sum is 24264000
The reverse of 20051381 is 18315002
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million fifty-one thousand three hundred eighty-one
Scientific notation
2.0051381 × 10^7
Engineering notation
2.0051381 × 10^6
Prime Factorization
7 × 17 × 168499
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20051381
Product of the distinct prime numbers
The prime factorization of 20051381 is 7 × 17 × 168499.
Since it has a total of 3 prime factors.
5 , 8 , 94 , 60 , 426 , 965 , 73 , 8142 , 14555 , 69216 , 769560 , 848836 , 3735654 , 4182715 , 74738405 , 7220896 , 803657822 , 778288057 , 4540003615 , 429673458
n×2
40102762
n×3
60154143
n×4
80205524
n×5
100256905
n÷2
10025690.5
n÷3
6683793.6666667
n÷3
5012845.25
n÷5
4010276.2
n2
402057880007161
n3
8.0618157360759E+21
n4
1.6165053887585E+29
n5
3.241316543855E+36
2 √n
4477.8768406467
3 √n
271.67401203788
4 √n
66.916939863137
5 √n
28.868808379406
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
-20051380
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 20051381 can be divided by 8 positive divisors.
The sum of these divisors (counting 20051381) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100011111010110110101
3
Ternary
1101201201022202
4
Quaternary
1030133112311
5
Quinary
20113121011
6
Senary
1553434245
8
Octal
114372665
10
Decimal
20051381
12
Duodecimal
686b985
16
Hexadecimal
131f5b5
20
Vigesimal
656891
36
Base36
bxrqt
md5
34eaabd67921ad6018ecfe39f9314a4b
sha1
aee9cd605e34a8d10cade5f59d2cb7d92b021240
sha256
374ca2bf42501a98e4799f5088d73c1ab22624925a8fcb036531555b76311817
sha512
8aeaf61fb0c8da15010ce7df06b2b4d7bdfb668f6ac6a096f034b42ed2e84e5af28e4474bbd14e69e123b0d9c061a6fd181fe9d5de2ac2c9efa5bebd54b56758
ripemd-160
160c251a04a61da1f64a3de24c504931a5e00c09
Diameter
40102762
Circumference
125986542.48786
Area
1.2631020821484E+15
Volume
3.3769254788067E+22
Surface area
5.0524083285935E+15
Circumference
125986542.48786
Perimeter
80205524
Area
402057880007161
Diagonal
28356934.95451
Surface area
2412347280042966
Volume
8.0618157360759E+21
Space diagonal
34730010.653921
Perimeter
60154143
Area
1.7409616893896E+14
Altitude
17365005.326961
Surface area
1.7409616893896E+14
Volume
9.5009409594261E+20
Height
9452311.6515034