20102989 is an odd 8-digits composite number following 20102988
and preceding 20102990 . In scientific notation, it is written as 2.0102989 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 19183296 positive integers (up to 20102989) that are relatively prime to 20102989.
20102989 has 8 divisors, whose sum is 21026880
The reverse of 20102989 is 98920102
Previous prime number is 1489
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred two thousand nine hundred eighty-nine
Scientific notation
2.0102989 × 10^7
Engineering notation
2.0102989 × 10^6
Prime Factorization
23 × 1489 × 587
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20102989
Product of the distinct prime numbers
The prime factorization of 20102989 is 23 × 1489 × 587.
Since it has a total of 3 prime factors.
1 , 7 , 91 , 60 , 381 , 559 , 9104 , 3360 , 37815 , 69277 , 684962 , 12542 , 2032545 , 4762156 , 18858026 , 58186880 , 577515233 , 183352907 , 9188516971 , 453493016
n×2
40205978
n×3
60308967
n×4
80411956
n×5
100514945
n÷2
10051494.5
n÷3
6700996.3333333
n÷3
5025747.25
n÷5
4020597.8
n2
404130166734121
n3
8.1242242964242E+21
n4
1.6332119166455E+29
n5
3.2832441194993E+36
2 √n
4483.6356899284
3 √n
271.90688944652
4 √n
66.959955868627
5 √n
28.883653541367
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
-20102988
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 20102989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20102989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101011111101001101
3
Ternary
1101211100010011
4
Quaternary
1030223331031
5
Quinary
20121243424
6
Senary
1554513221
8
Octal
114537515
10
Decimal
20102989
12
Duodecimal
6895811
16
Hexadecimal
132bf4d
20
Vigesimal
65ch99
36
Base36
byvkd
md5
db1db795f12cf20fd1d1c079acdeec6e
sha1
45830d5a1304d8865c7b8dc898f667e1f189a639
sha256
8e691ea6e1f22e90efbdba19d3f482d6ebfe32088746d16f22b5cef877b0c31c
sha512
29109dd31fc6a6361806078df51730ce1de6dc1d65a1fe1bf81eec05541b1fbcbf9e7176e3e035f5e19478545d69364f19e5450d8f9eeab310c42b2b20119b0e
ripemd-160
d3fbaf159c4509c380ec4a08de9a80cddeeb5970
Diameter
40205978
Circumference
126310805.11519
Area
1.2696123629059E+15
Volume
3.4030671154349E+22
Surface area
5.0784494516237E+15
Circumference
126310805.11519
Perimeter
80411956
Area
404130166734121
Diagonal
28429919.688037
Surface area
2424781000404726
Volume
8.1242242964242E+21
Space diagonal
34819398.331998
Perimeter
60308967
Area
1.7499349541369E+14
Altitude
17409699.165999
Surface area
1.7499349541369E+14
Volume
9.5744901531368E+20
Height
9476639.8960124