20143981 is an odd 8-digits composite number following 20143980
and preceding 20143982 . In scientific notation, it is written as 2.0143981 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 16903920 positive integers (up to 20143981) that are relatively prime to 20143981.
20143981 has 8 divisors, whose sum is 23665824
The reverse of 20143981 is 18934102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred forty-three thousand nine hundred eighty-one
Scientific notation
2.0143981 × 10^7
Engineering notation
2.0143981 × 10^6
Prime Factorization
11 × 13 × 140867
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20143981
Product of the distinct prime numbers
The prime factorization of 20143981 is 11 × 13 × 140867.
Since it has a total of 3 prime factors.
4 , 8 , 91 , 51 , 51 , 886 , 2190 , 1647 , 79349 , 35178 , 526222 , 18474 , 4903265 , 2103566 , 25703202 , 31454079 , 234701406 , 46347759 , 3427539288 , 8781295719
n×2
40287962
n×3
60431943
n×4
80575924
n×5
100719905
n÷2
10071990.5
n÷3
6714660.3333333
n÷3
5035995.25
n÷5
4028796.2
n2
405779970528361
n3
8.1740240165039E+21
n4
1.64657384482E+29
n5
3.3168552245151E+36
2 √n
4488.2046521967
3 √n
272.09157906063
4 √n
66.994064305703
5 √n
28.8954232756
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
-20143980
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 20143981 can be divided by 8 positive divisors.
The sum of these divisors (counting 20143981) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110101111101101101
3
Ternary
1101220102100101
4
Quaternary
1030311331231
5
Quinary
20124101411
6
Senary
1555431101
8
Octal
114657555
10
Decimal
20143981
12
Duodecimal
68b5491
16
Hexadecimal
1335f6d
20
Vigesimal
65hjj1
36
Base36
bzr71
md5
cabf3f23e3402bc617c972f1851ce1b5
sha1
6dda290a36ff5e4830c7e9316e911c40aeae8e5c
sha256
acf9ad87a936ebd421ac51bed5c5402f1b8f12853a14f655f66debcba8844a97
sha512
1fe3dbccee6600e6e6c15a268018b1adeeefa9c4e65bd95aa0d87e49dd233b3e99ee0f6ed28893d3dd0b932712722617836bf8d2dd2fda279933f454e4c83913
ripemd-160
7322be7ec1199a1a41fe56f4cda3409155c5492e
Diameter
40287962
Circumference
126568365.4473
Area
1.2747953743858E+15
Volume
3.423927173402E+22
Surface area
5.0991814975431E+15
Circumference
126568365.4473
Perimeter
80575924
Area
405779970528361
Diagonal
28487891.130386
Surface area
2434679823170166
Volume
8.1740240165039E+21
Space diagonal
34890398.558702
Perimeter
60431943
Area
1.7570788141223E+14
Altitude
17445199.279351
Surface area
1.7570788141223E+14
Volume
9.633179686086E+20
Height
9495963.7101286