21371909 is an odd 8-digits composite number following 21371908
and preceding 21371910 . In scientific notation, it is written as 2.1371909 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 6 positive divisors.
There are 19727760 positive integers (up to 21371909) that are relatively prime to 21371909.
21371909 has 6 divisors, whose sum is 23142546
The reverse of 21371909 is 90917312
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million three hundred seventy-one thousand nine hundred nine
Scientific notation
2.1371909 × 10^7
Engineering notation
2.1371909 × 10^6
Prime Factorization
13 × 13 × 126461
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1643993
Product of the distinct prime numbers
The prime factorization of 21371909 is 13 × 13 × 126461.
Since it has a total of 3 prime factors.
6 , 4 , 73 , 10 , 63 , 635 , 3759 , 3015 , 31857 , 9483 , 222352 , 169534 , 6594589 , 908380 , 28387646 , 73961052 , 405544465 , 32645277 , 5726197883 , 5287146583
n×2
42743818
n×3
64115727
n×4
85487636
n×5
106859545
n÷2
10685954.5
n÷3
7123969.6666667
n÷3
5342977.25
n÷5
4274381.8
n2
456758494304281
n3
9.7618009752481E+21
n4
2.0862832211911E+29
n5
4.4587855151524E+36
2 √n
4622.9762058657
3 √n
277.51157704048
4 √n
67.992471685222
5 √n
29.239413917766
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21371908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21371909 can be divided by 6 positive divisors.
The sum of these divisors (counting 21371909) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010001100001110000000101
3
Ternary
1111012210202012
4
Quaternary
1101201300011
5
Quinary
20432400114
6
Senary
2042024005
8
Octal
121416005
10
Decimal
21371909
12
Duodecimal
71a8005
16
Hexadecimal
1461c05
20
Vigesimal
6db9f9
36
Base36
cq2o5
md5
efc6c3f1896c968f70a17b4e44ac963a
sha1
7563c878ef73c76cbcd4403cfb7dd405793c47c8
sha256
9a59fa9486b145e19fd10ad7b1b43af13f8f09b565c225240331a05eaa44e571
sha512
3314e64f371c6458ecf63251201bfb4d28b201f5edbdc7e0ef6064b0f559a68604c8f2441167cbabcd8d70427edfc10a8e4ca712627fc1c77514506e12a00910
ripemd-160
6b12eac4a1b5ff37fba4c444e5f2d54b1ad1f14d
Diameter
42743818
Circumference
134283664.61518
Area
1.4349491301711E+15
Volume
4.0890136306194E+22
Surface area
5.7397965206843E+15
Circumference
134283664.61518
Perimeter
85487636
Area
456758494304281
Diagonal
30224443.561604
Surface area
2740550965825686
Volume
9.7618009752481E+21
Space diagonal
37017232.242739
Perimeter
64115727
Area
1.9778222973092E+14
Altitude
18508616.121369
Surface area
1.9778222973092E+14
Volume
1.1504392776986E+21
Height
10074814.520535