20147989 is an odd 8-digits composite number following 20147988
and preceding 20147990 . In scientific notation, it is written as 2.0147989 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 20137356 positive integers (up to 20147989) that are relatively prime to 20147989.
20147989 has 4 divisors, whose sum is 20158624
The reverse of 20147989 is 98974102
Previous prime number is 2467
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million one hundred forty-seven thousand nine hundred eighty-nine
Scientific notation
2.0147989 × 10^7
Engineering notation
2.0147989 × 10^6
Prime Factorization
2467 × 8167
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20147989
Product of the distinct prime numbers
The prime factorization of 20147989 is 2467 × 8167.
Since it has a total of 2 prime factors.
4 , 3 , 10 , 10 , 302 , 21 , 9239 , 6635 , 61650 , 3779 , 635747 , 776261 , 4987763 , 5585739 , 31260210 , 96455333 , 842809152 , 912341982 , 3328658683 , 4284594852
n×2
40295978
n×3
60443967
n×4
80591956
n×5
100739945
n÷2
10073994.5
n÷3
6715996.3333333
n÷3
5036997.25
n÷5
4029597.8
n2
405941460744121
n3
8.1789040857165E+21
n4
1.6478846955107E+29
n5
3.3201562718418E+36
2 √n
4488.6511336926
3 √n
272.10962366875
4 √n
66.997396469509
5 √n
28.89657303483
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
-20147988
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 20147989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20147989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110111100010101
3
Ternary
1101220121211211
4
Quaternary
1030312330111
5
Quinary
20124213424
6
Senary
1555501421
8
Octal
114667425
10
Decimal
20147989
12
Duodecimal
68b7871
16
Hexadecimal
1336f15
20
Vigesimal
65i9j9
36
Base36
bzuad
md5
7bb95684a7a0c669e5469e42a8fe128a
sha1
62fdb8adbb7e68cc83be8dda4344430d0c94841b
sha256
2ca93883bb9b5f889fd93b7315a43b9e3fe52cd31f8529df5cb88beb126e2d63
sha512
d34bb8ca345704dab973134b5179aaa1c73d30a991b6a7fcf406ad8bb2823515d552a40f44155ac0a31f83205b364e2a0f53aaaa08446ed88e93da10eb323820
ripemd-160
e56797d1a8ed2d37c168b6ba42b2938b489ee4fc
Diameter
40295978
Circumference
126593548.45402
Area
1.2753027108612E+15
Volume
3.4259713320137E+22
Surface area
5.101210843445E+15
Circumference
126593548.45402
Perimeter
80591956
Area
405941460744121
Diagonal
28493559.298344
Surface area
2435648764464726
Volume
8.1789040857165E+21
Space diagonal
34897340.618339
Perimeter
60443967
Area
1.7577780872689E+14
Altitude
17448670.309169
Surface area
1.7577780872689E+14
Volume
9.6389309028075E+20
Height
9497853.099448