20091661 is an odd 8-digits composite number following 20091660
and preceding 20091662 . In scientific notation, it is written as 2.0091661 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 19865824 positive integers (up to 20091661) that are relatively prime to 20091661.
20091661 has 4 divisors, whose sum is 20317500
The reverse of 20091661 is 16619002
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million ninety-one thousand six hundred sixty-one
Scientific notation
2.0091661 × 10^7
Engineering notation
2.0091661 × 10^6
Prime Factorization
89 × 225749
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20091661
Product of the distinct prime numbers
The prime factorization of 20091661 is 89 × 225749.
Since it has a total of 2 prime factors.
4 , 8 , 81 , 50 , 732 , 752 , 5805 , 9621 , 97618 , 43974 , 863550 , 45308 , 3542204 , 2294941 , 9709943 , 2564998 , 773405358 , 107857 , 3008673452 , 8518312016
n×2
40183322
n×3
60274983
n×4
80366644
n×5
100458305
n÷2
10045830.5
n÷3
6697220.3333333
n÷3
5022915.25
n÷5
4018332.2
n2
403674841738921
n3
8.1104980744471E+21
n4
1.6295337785294E+29
n5
3.2740040266262E+36
2 √n
4482.3722513865
3 √n
271.85580682758
4 √n
66.950520919456
5 √n
28.880397629506
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
-20091660
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 20091661 can be divided by 4 positive divisors.
The sum of these divisors (counting 20091661) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101001001100001101
3
Ternary
1101210202120121
4
Quaternary
1030221030031
5
Quinary
20120413121
6
Senary
1554344541
8
Octal
114511415
10
Decimal
20091661
12
Duodecimal
688b151
16
Hexadecimal
132930d
20
Vigesimal
65b931
36
Base36
bymtp
md5
3c9881ae61fa736278b9f6a377c90b2c
sha1
467d8dca296b4ef99aae1496c48fb5af7ebabfbf
sha256
6c19455556259ad0d027bc3d1e4bdb69e057cbe725de1026d516416089c88ec9
sha512
dfafc51d8499662b4421589e3c2831f144870e9b322b417139fc06140818449af90991269598c0a55f6fb6d2d480b23e7d1b7a59610bf0ef694ec73f0f71cfed
ripemd-160
1b40dcc6f3b0fa1c9dcc334cfe604efb1791f95f
Diameter
40183322
Circumference
126239629.19203
Area
1.268181917246E+15
Volume
3.3973174890183E+22
Surface area
5.0727276689841E+15
Circumference
126239629.19203
Perimeter
80366644
Area
403674841738921
Diagonal
28413899.476803
Surface area
2422049050433526
Volume
8.1104980744471E+21
Space diagonal
34799777.66045
Perimeter
60274983
Area
1.7479633390728E+14
Altitude
17399888.830225
Surface area
1.7479633390728E+14
Volume
9.5583136454032E+20
Height
9471299.8256009