21091570 is an even 8-digits composite number following 21091569
and preceding 21091571 . In scientific notation, it is written as 2.1091570 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 8388784 positive integers (up to 21091570) that are relatively prime to 21091570.
21091570 has 16 divisors, whose sum is 38180160
The reverse of 21091570 is 07519012
Previous prime number is 179
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million ninety-one thousand five hundred seventy
Scientific notation
2.1091570 × 10^7
Engineering notation
2.1091570 × 10^6
Prime Factorization
2 × 5 × 179 × 11783
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21091570
Product of the distinct prime numbers
The prime factorization of 21091570 is 2 × 5 × 179 × 11783.
Since it has a total of 4 prime factors.
2 , 7 , 8 , 62 , 793 , 211 , 7742 , 47 , 56567 , 77899 , 353946 , 268207 , 9803256 , 4261454 , 2825597 , 84748290 , 762165366 , 983341457 , 7433469559 , 9038988606
n×2
42183140
n×3
63274710
n×4
84366280
n×5
105457850
n÷2
10545785
n÷3
7030523.3333333
n÷3
5272892.5
n÷5
4218314
n2
444854325064900
n3
9.3826761369091E+21
n4
1.9789537052895E+29
n5
4.1739240601872E+36
2 √n
4592.5559332468
3 √n
276.29284362428
4 √n
67.768399222992
5 √n
29.162300563071
1 , 2 , 5 , 10 , 179 , 358 , 895 , 1790 , 11783 , 23566 , 58915 , 117830 , 2109157 , 4218314 , 10545785 , 21091570
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
-21091569
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 21091570 can be divided by 16 positive divisors.
The sum of these divisors (counting 21091570) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011101010011110010
3
Ternary
1110200120012021
4
Quaternary
1100131103302
5
Quinary
20344412240
6
Senary
2032022054
8
Octal
120352362
10
Decimal
21091570
12
Duodecimal
709192a
16
Hexadecimal
141d4f2
20
Vigesimal
6bg8ia
36
Base36
ck2cy
md5
acb5e29f382dc185188b6f91550406ae
sha1
ad4663e9bb4697bdf5863c0d44f84efe565be00e
sha256
231e2911457925d0b3744d709a9181fbd77ac59dbad9df7bd0455d8617b1cea8
sha512
c65af385279e2c4bf134c3537999aac8a8dc974bc528ad6a9afce03f02d76af466c2d647bd44ae4d2c5322ea0ae1e8d37bfb039ef098d04245e51550f533a97f
ripemd-160
5378375c0502160b5c4ad54387a1afdb5938d6b8
Diameter
42183140
Circumference
132522242.72935
Area
1.3975510795415E+15
Volume
3.9302061896968E+22
Surface area
5.5902043181661E+15
Circumference
132522242.72935
Perimeter
84366280
Area
444854325064900
Diagonal
29827984.345742
Surface area
2669125950389400
Volume
9.3826761369091E+21
Space diagonal
36531670.851396
Perimeter
63274710
Area
1.9262757324479E+14
Altitude
18265835.425698
Surface area
1.9262757324479E+14
Volume
1.1057589870143E+21
Height
9942661.4485805