21490545 is an odd 8-digits composite number following 21490544
and preceding 21490546 . In scientific notation, it is written as 2.1490545 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 11461616 positive integers (up to 21490545) that are relatively prime to 21490545.
21490545 has 8 divisors, whose sum is 34384896
The reverse of 21490545 is 54509412
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million four hundred ninety thousand five hundred forty-five
Scientific notation
2.1490545 × 10^7
Engineering notation
2.1490545 × 10^6
Prime Factorization
5 × 3 × 1432703
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21490545
Product of the distinct prime numbers
The prime factorization of 21490545 is 5 × 3 × 1432703.
Since it has a total of 3 prime factors.
5 , 7 , 93 , 23 , 92 , 335 , 5572 , 8848 , 25770 , 63243 , 378704 , 67623 , 2435619 , 8827935 , 6919989 , 11823977 , 352889409 , 438910622 , 1274024868 , 2685237144
n×2
42981090
n×3
64471635
n×4
85962180
n×5
107452725
n÷2
10745272.5
n÷3
7163515
n÷3
5372636.25
n÷5
4298109
n2
461843524397025
n3
9.9252690440129E+21
n4
2.1329944102747E+29
n5
4.5839212358756E+36
2 √n
4635.7895767604
3 √n
278.02412105457
4 √n
68.086632878711
5 √n
29.271803821736
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
-21490544
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 21490545 can be divided by 8 positive divisors.
The sum of these divisors (counting 21490545) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110101101110001
3
Ternary
1111102211111010
4
Quaternary
1101332231301
5
Quinary
21000144140
6
Senary
2044341133
8
Octal
121765561
10
Decimal
21490545
12
Duodecimal
72447a9
16
Hexadecimal
147eb71
20
Vigesimal
6e6675
36
Base36
csm7l
md5
5a0f8130806eb57537c939ddf068f1dd
sha1
809c3d75a7065d0379519581dd1b9fbfb32a6595
sha256
de9ad7324634396fd0d3f8022b2250cbcabe4e1afcd0fc5ccd5900986918314f
sha512
32d66adfbd29f02370a6e1b5e02d0ddcfeb42cf808d276a90ba3ae31915b50aa3b49fd63ba51e8c4a8c081f619153e21e28d804a9d50e2728f68c2962bd4b811
ripemd-160
b8586514c9e6049f45e3741d498eaced3b03198f
Diameter
42981090
Circumference
135029076.58728
Area
1.4509242233537E+15
Volume
4.1574869751431E+22
Surface area
5.8036968934148E+15
Circumference
135029076.58728
Perimeter
85962180
Area
461843524397025
Diagonal
30392220.201789
Surface area
2771061146382150
Volume
9.9252690440129E+21
Space diagonal
37222715.822345
Perimeter
64471635
Area
1.9998411235058E+14
Altitude
18611357.911173
Surface area
1.9998411235058E+14
Volume
1.1697041743537E+21
Height
10130740.067263