21001547 is an odd 8-digits composite number following 21001546
and preceding 21001548 . In scientific notation, it is written as 2.1001547 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 10 positive divisors.
There are 17999268 positive integers (up to 21001547) that are relatively prime to 21001547.
21001547 has 10 divisors, whose sum is 24503148
The reverse of 21001547 is 74510012
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million one thousand five hundred forty-seven
Scientific notation
2.1001547 × 10^7
Engineering notation
2.1001547 × 10^6
Prime Factorization
7 × 49 × 7 × 8747
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
3000221
Product of the distinct prime numbers
The prime factorization of 21001547 is 7 × 49 × 7 × 8747.
Since it has a total of 4 prime factors.
7 , 8 , 2 , 81 , 919 , 557 , 9756 , 499 , 19673 , 74262 , 154857 , 521183 , 7580866 , 2557698 , 95715519 , 25127591 , 448740472 , 956758079 , 9627143488 , 7701994395
n×2
42003094
n×3
63004641
n×4
84006188
n×5
105007735
n÷2
10500773.5
n÷3
7000515.6666667
n÷3
5250386.75
n÷5
4200309.4
n2
441064976393209
n3
9.2630468317759E+21
n4
1.9453831340074E+29
n5
4.0856055321864E+36
2 √n
4582.7444833855
3 √n
275.89919216335
4 √n
67.695970953857
5 √n
29.137363857282
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21001546
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21001547 can be divided by 10 positive divisors.
The sum of these divisors (counting 21001547) is 1, the average is 0.1.
Base
System
Value
2
Binary
1010000000111010101001011
3
Ternary
1110111222201002
4
Quaternary
1100013111023
5
Quinary
20334022142
6
Senary
2030045215
8
Octal
120072513
10
Decimal
21001547
12
Duodecimal
704980b
16
Hexadecimal
140754b
20
Vigesimal
6b53h7
36
Base36
ci4wb
md5
6053d095151c70c4d9f2b1705774a904
sha1
931df95463c08b51ebe59b89f63d644d7d624884
sha256
faf5f79adae001dd6902b551102d683e47e2d550f66dc421e036ae1ad8f3aff2
sha512
07dce15d8d345d717e9d58aa8425d9587242660e0dbdc7336a9f5381475deb6af22602db97f6877f76c38d4873b32d017bc9d74ff406a7d2774606a138874387
ripemd-160
eaa3238bdbe849774aac2e8198d02852e17800b0
Diameter
42003094
Circumference
131956611.53844
Area
1.3856464895927E+15
Volume
3.880095983542E+22
Surface area
5.5425859583706E+15
Circumference
131956611.53844
Perimeter
84006188
Area
441064976393209
Diagonal
29700672.598216
Surface area
2646389858359254
Volume
9.2630468317759E+21
Space diagonal
36375746.441546
Perimeter
63004641
Area
1.9098673713805E+14
Altitude
18187873.220773
Surface area
1.9098673713805E+14
Volume
1.0916605381995E+21
Height
9900224.1994053