21090947 is an odd 8-digits prime number following 21090946
and preceding 21090948 . In scientific notation, it is written as 2.1090947 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 21090946 positive integers (up to 21090947) that are relatively prime to 21090947.
21090947 has 2 divisors, whose sum is 21090948
The reverse of 21090947 is 74909012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million ninety thousand nine hundred forty-seven
Scientific notation
2.1090947 × 10^7
Engineering notation
2.1090947 × 10^6
Prime Factorization
21090947
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21090947
Product of the distinct prime numbers
The prime factorization of 21090947 is 21090947.
Since it has a total of 1 prime factors.
7 , 4 , 91 , 47 , 36 , 510 , 3049 , 8162 , 80183 , 11056 , 644200 , 35568 , 9168517 , 5619683 , 29294771 , 71855256 , 567559972 , 327597244 , 1157055946 , 674152618
n×2
42181894
n×3
63272841
n×4
84363788
n×5
105454735
n÷2
10545473.5
n÷3
7030315.6666667
n÷3
5272736.75
n÷5
4218189.4
n2
444828045356809
n3
9.3818447287341E+21
n4
1.9787198993596E+29
n5
4.1733076525239E+36
2 √n
4592.4881055916
3 √n
276.29012323036
4 √n
67.767898783949
5 √n
29.162128282602
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21090948
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10545474
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4592.488214465
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999051726
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21090947 can be divided by 2 positive divisors.
The sum of these divisors (counting 21090947) is 21090948, the average is 10545474.
Base
System
Value
2
Binary
1010000011101001010000011
3
Ternary
1110200112100012
4
Quaternary
1100131022003
5
Quinary
20344402242
6
Senary
2032015135
8
Octal
120351203
10
Decimal
21090947
12
Duodecimal
70914ab
16
Hexadecimal
141d283
20
Vigesimal
6bg777
36
Base36
ck1vn
md5
0a592b4c23c00c1a4a24afd952c6f43e
sha1
9ea9617f6929c842dbd69a60dc20b044e6551317
sha256
ed8828aa0089d342940f42f5f114563a4f95d8d7097db47bc58bd456b5ce2416
sha512
d337f1e63867c52f0787f7ed1af84d6610f7ea14bfb6db30db91efa51e0c003b5926d6b78abbe5eecd1dd94da1ad3ff53307fc7f2fbb200fc44dc0448ef277f8
ripemd-160
ed964128eec53e9b1b7b2eed44b5749567521cd9
Diameter
42181894
Circumference
132518328.3049
Area
1.3974685194037E+15
Volume
3.9298579302548E+22
Surface area
5.5898740776146E+15
Circumference
132518328.3049
Perimeter
84363788
Area
444828045356809
Diagonal
29827103.290692
Surface area
2668968272140854
Volume
9.3818447287341E+21
Space diagonal
36530591.783742
Perimeter
63272841
Area
1.9261619379739E+14
Altitude
18265295.891871
Surface area
1.9261619379739E+14
Volume
1.1056610046212E+21
Height
9942367.763564