20991570 is an even 8-digits composite number following 20991569
and preceding 20991571 . In scientific notation, it is written as 2.0991570 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 5597744 positive integers (up to 20991570) that are relatively prime to 20991570.
20991570 has 16 divisors, whose sum is 50379840
The reverse of 20991570 is 07519902
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million nine hundred ninety-one thousand five hundred seventy
Scientific notation
2.0991570 × 10^7
Engineering notation
2.0991570 × 10^6
Prime Factorization
2 × 3 × 5 × 699719
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20991570
Product of the distinct prime numbers
The prime factorization of 20991570 is 2 × 3 × 5 × 699719.
Since it has a total of 4 prime factors.
2 , 6 , 21 , 4 , 87 , 960 , 2750 , 5991 , 58003 , 66271 , 595339 , 303329 , 3888070 , 2805796 , 69446940 , 17708611 , 326145617 , 848042567 , 9853179116 , 9737753330
n×2
41983140
n×3
62974710
n×4
83966280
n×5
104957850
n÷2
10495785
n÷3
6997190
n÷3
5247892.5
n÷5
4198314
n2
440646011064900
n3
9.2498515864896E+21
n4
1.9416890706741E+29
n5
4.075910204529E+36
2 √n
4581.6558142226
3 √n
275.85549566413
4 √n
67.687929605083
5 √n
29.134594930445
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 699719 , 1399438 , 2099157 , 3498595 , 4198314 , 6997190 , 10495785 , 20991570
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20991569
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20991570 can be divided by 16 positive divisors.
The sum of these divisors (counting 20991570) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000100111001010010
3
Ternary
1110111111000120
4
Quaternary
1100010321102
5
Quinary
20333212240
6
Senary
2025531110
8
Octal
120047122
10
Decimal
20991570
12
Duodecimal
7043a96
16
Hexadecimal
1404e52
20
Vigesimal
6b3iia
36
Base36
chx76
md5
1f4b680f83929877df9a4c02310c7d87
sha1
02af66a50ba370e627be76cbafe7be9c7d60d041
sha256
ce6da0cdac50430b64a89455d7731064a2cf90bffd829bafaff6ddb3423edd9d
sha512
8a96c983ac5eb41f645ee4a36bc588e6ae3bb6c46c7135051e596f19c157a484fbcac832804a08bc71b922003e967141fba34741f461f29fd094a1b3fdff33c4
ripemd-160
d63b9ff0b01fe9d267aeaf5965e96be11c3d6495
Diameter
41983140
Circumference
131893924.19863
Area
1.3843302711951E+15
Volume
3.8745687721216E+22
Surface area
5.5373210847805E+15
Circumference
131893924.19863
Perimeter
83966280
Area
440646011064900
Diagonal
29686562.989504
Surface area
2643876066389400
Volume
9.2498515864896E+21
Space diagonal
36358465.770639
Perimeter
62974710
Area
1.9080531982924E+14
Altitude
18179232.885319
Surface area
1.9080531982924E+14
Volume
1.0901054636293E+21
Height
9895520.9965014