21509898 is an even 8-digits composite number following 21509897
and preceding 21509899 . In scientific notation, it is written as 2.1509898 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 7169964 positive integers (up to 21509898) that are relatively prime to 21509898.
21509898 has 8 divisors, whose sum is 43019808
The reverse of 21509898 is 89890512
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-one million five hundred nine thousand eight hundred ninety-eight
Scientific notation
2.1509898 × 10^7
Engineering notation
2.1509898 × 10^6
Prime Factorization
2 × 3 × 3584983
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21509898
Product of the distinct prime numbers
The prime factorization of 21509898 is 2 × 3 × 3584983.
Since it has a total of 3 prime factors.
4 , 2 , 5 , 58 , 92 , 370 , 8218 , 2625 , 50433 , 81814 , 347607 , 509520 , 8685385 , 3520355 , 16067829 , 22733595 , 606971815 , 637966328 , 471430295 , 7268984486
n×2
43019796
n×3
64529694
n×4
86039592
n×5
107549490
n÷2
10754949
n÷3
7169966
n÷3
5377474.5
n÷5
4301979.6
n2
462675711970404
n3
9.9521073715608E+21
n4
2.1406881444732E+29
n5
4.6045983637428E+36
2 √n
4637.8764537232
3 √n
278.10755288442
4 √n
68.10195631348
5 √n
29.277073983746
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
-21509897
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 21509898 can be divided by 8 positive divisors.
The sum of these divisors (counting 21509898) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000011011100001010
3
Ternary
1111110211000220
4
Quaternary
1102003130022
5
Quinary
21001304043
6
Senary
2045010510
8
Octal
122033412
10
Decimal
21509898
12
Duodecimal
7253a36
16
Hexadecimal
148370a
20
Vigesimal
6e8eei
36
Base36
ct156
md5
174983c1708e0e6bbbd9bcbe95666415
sha1
1ceca4c658b5601a4eb233d42fff83a8dcbc6442
sha256
1d29f93660c9ff3238a48a16245e44ca6c34b566bbf32bcdb482c52e66469f7d
sha512
2f69e87836a4c80c2715aa23e1539cfb7f82412282c4f95e136d501792196da60926fc9e6a7935510b06f625ae04d8e88029000998110de7e14626a7905d0038
ripemd-160
709dbd67f396f01e0911b5bab29810042130cdd1
Diameter
43019796
Circumference
135150675.07253
Area
1.4535386177206E+15
Volume
4.1687289874976E+22
Surface area
5.8141544708826E+15
Circumference
135150675.07253
Perimeter
86039592
Area
462675711970404
Diagonal
30419589.476862
Surface area
2776054271822424
Volume
9.9521073715608E+21
Space diagonal
37256236.201624
Perimeter
64529694
Area
2.0034446014021E+14
Altitude
18628118.100812
Surface area
2.0034446014021E+14
Volume
1.1728671015879E+21
Height
10139863.158954