20187691 is an odd 8-digits composite number following 20187690
and preceding 20187692 . In scientific notation, it is written as 2.0187691 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 19991592 positive integers (up to 20187691) that are relatively prime to 20187691.
20187691 has 4 divisors, whose sum is 20383792
The reverse of 20187691 is 19678102
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred eighty-seven thousand six hundred ninety-one
Scientific notation
2.0187691 × 10^7
Engineering notation
2.0187691 × 10^6
Prime Factorization
103 × 195997
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20187691
Product of the distinct prime numbers
The prime factorization of 20187691 is 103 × 195997.
Since it has a total of 2 prime factors.
2 , 9 , 48 , 63 , 438 , 656 , 4912 , 8484 , 94266 , 68848 , 680354 , 361720 , 6994371 , 6390183 , 59302289 , 6242187 , 315760577 , 874313775 , 2830495491 , 9706818236
n×2
40375382
n×3
60563073
n×4
80750764
n×5
100938455
n÷2
10093845.5
n÷3
6729230.3333333
n÷3
5046922.75
n÷5
4037538.2
n2
407542867911481
n3
8.2273494866508E+21
n4
1.6609118918551E+29
n5
3.3529976050997E+36
2 √n
4493.0714439012
3 √n
272.28823881495
4 √n
67.030377023415
5 √n
28.907952319757
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
-20187690
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 20187691 can be divided by 4 positive divisors.
The sum of these divisors (counting 20187691) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000000101000101011
3
Ternary
1101222122022021
4
Quaternary
1031000220223
5
Quinary
20132001231
6
Senary
2000405311
8
Octal
115005053
10
Decimal
20187691
12
Duodecimal
6916837
16
Hexadecimal
1340a2b
20
Vigesimal
66394b
36
Base36
c0ox7
md5
52f99bcc502488e81e3611d705acb348
sha1
98c532552c8a29ccc275b776618b2f774f6b21c3
sha256
da82c26be6943d35694fc641f09d6055c08f15b24fd581025af689b3781e9112
sha512
ea736939ae297af28f84abe4c4d151c09b621305a93280d35a523dfbb2e5beb03b720f1b8b528f64f2ac774316e07d57a4543d5bfc30847c095c3a0636c9ee84
ripemd-160
995e67d96572c5a334a6f42ecee17ff22d4914e3
Diameter
40375382
Circumference
126843003.47708
Area
1.2803336798536E+15
Volume
3.4462640941037E+22
Surface area
5.1213347194145E+15
Circumference
126843003.47708
Perimeter
80750764
Area
407542867911481
Diagonal
28549706.405197
Surface area
2445257207468886
Volume
8.2273494866508E+21
Space diagonal
34966106.499501
Perimeter
60563073
Area
1.7647123837125E+14
Altitude
17483053.24975
Surface area
1.7647123837125E+14
Volume
9.6960243553374E+20
Height
9516568.8017324