20081901 is an odd 8-digits composite number following 20081900
and preceding 20081902 . In scientific notation, it is written as 2.0081901 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 11475360 positive integers (up to 20081901) that are relatively prime to 20081901.
20081901 has 4 divisors, whose sum is 21038204
The reverse of 20081901 is 10918002
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million eighty-one thousand nine hundred one
Scientific notation
2.0081901 × 10^7
Engineering notation
2.0081901 × 10^6
Prime Factorization
21 × 956281
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20081901
Product of the distinct prime numbers
The prime factorization of 20081901 is 21 × 956281.
Since it has a total of 2 prime factors.
9 , 3 , 4 , 14 , 165 , 373 , 9643 , 3124 , 9615 , 13883 , 70225 , 577720 , 2380386 , 4505602 , 34153759 , 70988413 , 21993568 , 503000706 , 7973609662 , 6162828779
n×2
40163802
n×3
60245703
n×4
80327604
n×5
100409505
n÷2
10040950.5
n÷3
6693967
n÷3
5020475.25
n÷5
4016380.2
n2
403282747773801
n3
8.0986842158014E+21
n4
1.6263697465199E+29
n5
3.2660596239007E+36
2 √n
4481.2834099173
3 √n
271.81177956627
4 √n
66.942388737759
5 √n
28.877591216762
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
-20081900
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 20081901 can be divided by 4 positive divisors.
The sum of these divisors (counting 20081901) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100100110110011101101
3
Ternary
1101210021012010
4
Quaternary
1030212303231
5
Quinary
20120110101
6
Senary
1554231433
8
Octal
114466355
10
Decimal
20081901
12
Duodecimal
6885579
16
Hexadecimal
1326ced
20
Vigesimal
65a4f1
36
Base36
byfal
md5
0c69367f67b62f432935b8556125031b
sha1
282b9ef0a3da43f7f3305dc28da4e3ca01dfd5e1
sha256
35aaa4c4bfdfd38ae165a77cebfd20ece96052807a36ac0776f9c852ae5f8c6f
sha512
4506d64dfbc85667d195c878360f24b3a7309455be038f6a9408eebe798561a39b439c8dd6a2a1881877c58b5b49fcfc080bc0496b11d86b2cab5f8d5d8d2a6d
ripemd-160
bb08d5410eece343b3a0db0a1484152b95579802
Diameter
40163802
Circumference
126178305.30344
Area
1.2669501177257E+15
Volume
3.3923689114807E+22
Surface area
5.0678004709027E+15
Circumference
126178305.30344
Perimeter
80327604
Area
403282747773801
Diagonal
28400096.752434
Surface area
2419696486642806
Volume
8.0986842158014E+21
Space diagonal
34782872.844568
Perimeter
60245703
Area
1.7462655224005E+14
Altitude
17391436.422284
Surface area
1.7462655224005E+14
Volume
9.5443908794694E+20
Height
9466698.9174779