20990445 is an odd 8-digits composite number following 20990444
and preceding 20990446 . In scientific notation, it is written as 2.0990445 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 9595584 positive integers (up to 20990445) that are relatively prime to 20990445.
20990445 has 4 divisors, whose sum is 21190460
The reverse of 20990445 is 54409902
Previous prime number is 105
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million nine hundred ninety thousand four hundred forty-five
Scientific notation
2.0990445 × 10^7
Engineering notation
2.0990445 × 10^6
Prime Factorization
105 × 199909
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20990445
Product of the distinct prime numbers
The prime factorization of 20990445 is 105 × 199909.
Since it has a total of 2 prime factors.
4 , 1 , 8 , 43 , 485 , 927 , 3413 , 2284 , 39989 , 19490 , 366135 , 267156 , 3580666 , 9057414 , 5249193 , 85275287 , 946131273 , 110696108 , 9621324354 , 6758023084
n×2
41980890
n×3
62971335
n×4
83961780
n×5
104952225
n÷2
10495222.5
n÷3
6996815
n÷3
5247611.25
n÷5
4198089
n2
440598781298025
n3
9.2483644859032E+21
n4
1.941272860813E+29
n5
4.0748181214889E+36
2 √n
4581.5330403698
3 √n
275.85056760687
4 √n
67.687022688029
5 √n
29.134282642017
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
-20990444
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 20990445 can be divided by 4 positive divisors.
The sum of these divisors (counting 20990445) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000100100111101101
3
Ternary
1110111102110220
4
Quaternary
1100010213231
5
Quinary
20333143240
6
Senary
2025521553
8
Octal
120044755
10
Decimal
20990445
12
Duodecimal
70432b9
16
Hexadecimal
14049ed
20
Vigesimal
6b3g25
36
Base36
chwbx
md5
985ca57b1207af13b0bfa6a10c619fbc
sha1
27b9d211534f2ced0f9ec86105776defaa6a4da4
sha256
46d4d4ae30b32cc372c29cdcd6d614fd5ca42f19729388023397bf5b031ee6d5
sha512
3390f40e017554f44999c32e9b2d4d0a7c3e9d4a80e2f4b8c15b60024233135c7c36241f5d50c40f2f041de16719b66c0661f8e730a89853ad4b226a800e79b4
ripemd-160
44c0d5004cc126ff88feb4939d75c34d92402f1a
Diameter
41980890
Circumference
131886855.61516
Area
1.3841818945065E+15
Volume
3.8739458568846E+22
Surface area
5.536727578026E+15
Circumference
131886855.61516
Perimeter
83961780
Area
440598781298025
Diagonal
29684971.999247
Surface area
2643592687788150
Volume
9.2483644859032E+21
Space diagonal
36356517.21348
Perimeter
62971335
Area
1.9078486874028E+14
Altitude
18178258.60674
Surface area
1.9078486874028E+14
Volume
1.0899302071445E+21
Height
9894990.6664155