20087961 is an odd 8-digits composite number following 20087960
and preceding 20087962 . In scientific notation, it is written as 2.0087961 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 13391972 positive integers (up to 20087961) that are relatively prime to 20087961.
20087961 has 4 divisors, whose sum is 26783952
The reverse of 20087961 is 16978002
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million eighty-seven thousand nine hundred sixty-one
Scientific notation
2.0087961 × 10^7
Engineering notation
2.0087961 × 10^6
Prime Factorization
3 × 6695987
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20087961
Product of the distinct prime numbers
The prime factorization of 20087961 is 3 × 6695987.
Since it has a total of 2 prime factors.
1 , 9 , 98 , 49 , 585 , 126 , 3824 , 4273 , 96228 , 29970 , 307055 , 847144 , 856445 , 6802068 , 18621583 , 18247286 , 280863656 , 182319316 , 6629326188 , 7218933732
n×2
40175922
n×3
60263883
n×4
80351844
n×5
100439805
n÷2
10043980.5
n÷3
6695987
n÷3
5021990.25
n÷5
4017592.2
n2
403526177137521
n3
8.1060181088176E+21
n4
1.6283337563522E+29
n5
3.2709904992587E+36
2 √n
4481.9595045025
3 √n
271.83911784341
4 √n
66.947438371475
5 √n
28.87933385142
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
-20087960
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 20087961 can be divided by 4 positive divisors.
The sum of these divisors (counting 20087961) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101000010010011001
3
Ternary
1101210120111120
4
Quaternary
1030220102121
5
Quinary
20120303321
6
Senary
1554315453
8
Octal
114502231
10
Decimal
20087961
12
Duodecimal
6888b89
16
Hexadecimal
1328499
20
Vigesimal
65aji1
36
Base36
byjyx
md5
7fbc558ee722df1f338277268dce19b5
sha1
8970f777f91363142dac70aa404d015d6ff4e745
sha256
79814dbb3f185d10683f9eaf1e8e8a7cdd9f345445180ce6005ba64623065fac
sha512
a83e6a42c57a5c2fbb026aa9008e5d412261822762833a7549c4e785c45b495fc1c6b1e3371b239eda0cd8dfd0225d8f167cc1d1c6016d4f72a4aecde5083110
ripemd-160
b2e00170e62620d07d771f62f09032a3e08a5053
Diameter
40175922
Circumference
126216381.4064
Area
1.2677148736264E+15
Volume
3.3954409254036E+22
Surface area
5.0708594945056E+15
Circumference
126216381.4064
Perimeter
80351844
Area
403526177137521
Diagonal
28408666.886622
Surface area
2421157062825126
Volume
8.1060181088176E+21
Space diagonal
34793369.072462
Perimeter
60263883
Area
1.7473196024656E+14
Altitude
17396684.536231
Surface area
1.7473196024656E+14
Volume
9.5530339552765E+20
Height
9469555.6288739