21005061 is an odd 8-digits composite number following 21005060
and preceding 21005062 . In scientific notation, it is written as 2.1005061 × 10^7.
The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors.
There are 10911600 positive integers (up to 21005061) that are relatively prime to 21005061.
21005061 has 8 divisors, whose sum is 24006048
The reverse of 21005061 is 16050012
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty-one million five thousand sixty-one
Scientific notation
2.1005061 × 10^7
Engineering notation
2.1005061 × 10^6
Prime Factorization
21 × 11 × 90931
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21005061
Product of the distinct prime numbers
The prime factorization of 21005061 is 21 × 11 × 90931.
Since it has a total of 3 prime factors.
5 , 4 , 85 , 11 , 523 , 113 , 9720 , 3414 , 83251 , 21363 , 860545 , 371323 , 3245398 , 9515425 , 22768285 , 77974325 , 162363127 , 76641530 , 5423991712 , 2333707825
n×2
42010122
n×3
63015183
n×4
84020244
n×5
105025305
n÷2
10502530.5
n÷3
7001687
n÷3
5251265.25
n÷5
4201012.2
n2
441212587613721
n3
9.2676973167941E+21
n4
1.946685474688E+29
n5
4.0890247143634E+36
2 √n
4583.127862061
3 √n
275.91457921544
4 √n
67.698802515709
5 √n
29.138338850644
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21005060
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21005061 can be divided by 8 positive divisors.
The sum of these divisors (counting 21005061) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001000001100000101
3
Ternary
1110112011112020
4
Quaternary
1100020030011
5
Quinary
20334130221
6
Senary
2030113353
8
Octal
120101405
10
Decimal
21005061
12
Duodecimal
704b859
16
Hexadecimal
1408305
20
Vigesimal
6b5cd1
36
Base36
ci7lx
md5
3f1671d00acbfa3ebb6de083ef0a4cb5
sha1
1f8f5f4a03af8d4e242b7e01c298796d94f9d93d
sha256
e1b78baec8a17657c68a5005f80e7e266f06afe3a66fd1e0fdd81fd336e6dae6
sha512
c467143f37a355da7de3a71e8836a3aee0091649dc0e2a619a6929d85c15fa3d789c612073904dc94cf439b05eda953d8c343cb19cd519d0c07bbf71fdf905c0
ripemd-160
1ea657f0a1c08db05baf9ebe53cddbf01f908453
Diameter
42010122
Circumference
131978690.65161
Area
1.3861102239186E+15
Volume
3.8820439741512E+22
Surface area
5.5444408956744E+15
Circumference
131978690.65161
Perimeter
84020244
Area
441212587613721
Diagonal
29705642.144674
Surface area
2647275525682326
Volume
9.2676973167941E+21
Space diagonal
36381832.868084
Perimeter
63015183
Area
1.9105065467147E+14
Altitude
18190916.434042
Surface area
1.9105065467147E+14
Volume
1.0922086031149E+21
Height
9901880.7148914