20081902 is an even 8-digits composite number following 20081901
and preceding 20081903 . In scientific notation, it is written as 2.0081902 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 10040950 positive integers (up to 20081902) that are relatively prime to 20081902.
20081902 has 4 divisors, whose sum is 30122856
The reverse of 20081902 is 20918002
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million eighty-one thousand nine hundred two
Scientific notation
2.0081902 × 10^7
Engineering notation
2.0081902 × 10^6
Prime Factorization
2 × 10040951
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20081902
Product of the distinct prime numbers
The prime factorization of 20081902 is 2 × 10040951.
Since it has a total of 2 prime factors.
4 , 8 , 92 , 35 , 384 , 127 , 200 , 7867 , 71713 , 67223 , 763745 , 747518 , 1816045 , 4249874 , 67499650 , 96538699 , 730140614 , 861220294 , 350492151 , 6311018748
n×2
40163804
n×3
60245706
n×4
80327608
n×5
100409510
n÷2
10040951
n÷3
6693967.3333333
n÷3
5020475.5
n÷5
4016380.4
n2
403282787937604
n3
8.0986854256497E+21
n4
1.6263700704673E+29
n5
3.2660604370857E+36
2 √n
4481.2835214925
3 √n
271.81178407799
4 √n
66.942389571127
5 √n
28.877591504361
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
-20081901
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 20081902 can be divided by 4 positive divisors.
The sum of these divisors (counting 20081902) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100100110110011101110
3
Ternary
1101210021012011
4
Quaternary
1030212303232
5
Quinary
20120110102
6
Senary
1554231434
8
Octal
114466356
10
Decimal
20081902
12
Duodecimal
688557a
16
Hexadecimal
1326cee
20
Vigesimal
65a4f2
36
Base36
byfam
md5
7f151dc19e878e58bbd16fa2440f9ba2
sha1
5f6de230773c63e1b3b03de589c689a953de6322
sha256
cd090de4850160e18073a0d84059e604e10b9fd921e70ab434be4db0f95a9341
sha512
688d17a9c614ec33934b9669c13117f339af8cab5b7fa86e0d81c4d43f272e0daa49097a359a5fc1336d388d85b680e0f3042a8867bef4a105160bad2f91a701
ripemd-160
7a6c82530c0d482e2858dff103afffad52d2afc9
Diameter
40163804
Circumference
126178311.58662
Area
1.266950243904E+15
Volume
3.3923694182608E+22
Surface area
5.0678009756159E+15
Circumference
126178311.58662
Perimeter
80327608
Area
403282787937604
Diagonal
28400098.166647
Surface area
2419696727625624
Volume
8.0986854256497E+21
Space diagonal
34782874.576619
Perimeter
60245706
Area
1.7462656963149E+14
Altitude
17391437.28831
Surface area
1.7462656963149E+14
Volume
9.5443923052893E+20
Height
9466699.3888825