21644897 is an odd 8-digits composite number following 21644896
and preceding 21644898 . In scientific notation, it is written as 2.1644897 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 21606420 positive integers (up to 21644897) that are relatively prime to 21644897.
21644897 has 4 divisors, whose sum is 21683376
The reverse of 21644897 is 79844612
Previous prime number is 571
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million six hundred forty-four thousand eight hundred ninety-seven
Scientific notation
2.1644897 × 10^7
Engineering notation
2.1644897 × 10^6
Prime Factorization
571 × 37907
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21644897
Product of the distinct prime numbers
The prime factorization of 21644897 is 571 × 37907.
Since it has a total of 2 prime factors.
2 , 5 , 9 , 70 , 533 , 759 , 9500 , 6287 , 42906 , 55865 , 778528 , 696062 , 1871087 , 6801748 , 26986328 , 96936497 , 78453462 , 192718909 , 5184855223 , 1047310586
n×2
43289794
n×3
64934691
n×4
86579588
n×5
108224485
n÷2
10822448.5
n÷3
7214965.6666667
n÷3
5411224.25
n÷5
4328979.4
n2
468501566140609
n3
1.0140668143452E+22
n4
2.194937174762E+29
n5
4.7509189069195E+36
2 √n
4652.4076562571
3 √n
278.68815334451
4 √n
68.208559992549
5 √n
29.313731439358
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21644896
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21644897 can be divided by 4 positive divisors.
The sum of these divisors (counting 21644897) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010100100011001100001
3
Ternary
1111201200012212
4
Quaternary
1102210121201
5
Quinary
21020114042
6
Senary
2051531505
8
Octal
122443141
10
Decimal
21644897
12
Duodecimal
72b9b95
16
Hexadecimal
14a4661
20
Vigesimal
6f5c4h
36
Base36
cvxb5
md5
74482e1a087373b6b376263e9b59381b
sha1
12626b0a65820976249d82b83dbbb948c92d8bdc
sha256
851f4a3aaaceab9c1402032bc644b639784752da7ca93fd4c0856ab50ed87350
sha512
0f85386eaf89aff3002c95477c5ad6adbbe88b6f1e24a1391794d4cc5d0742a306885efc85a2c15a18ac7f1d857366fc3f357b17cdcba260979a72b264d5dd6f
ripemd-160
07af6bf20f60e58415f145af2ce7bbcd6ff6f6f0
Diameter
43289794
Circumference
135998898.80582
Area
1.4718410783826E+15
Volume
4.2477131389282E+22
Surface area
5.8873643135306E+15
Circumference
135998898.80582
Perimeter
86579588
Area
468501566140609
Diagonal
30610506.893569
Surface area
2811009396843654
Volume
1.0140668143452E+22
Space diagonal
37490061.328595
Perimeter
64934691
Area
2.0286712899528E+14
Altitude
18745030.664298
Surface area
2.0286712899528E+14
Volume
1.1950892016662E+21
Height
10203502.297856