21379909 is an odd 8-digits prime number following 21379908
and preceding 21379910 . In scientific notation, it is written as 2.1379909 × 10^7.
The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors.
There are 21379908 positive integers (up to 21379909) that are relatively prime to 21379909.
21379909 has 2 divisors, whose sum is 21379910
The reverse of 21379909 is 90997312
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million three hundred seventy-nine thousand nine hundred nine
Scientific notation
2.1379909 × 10^7
Engineering notation
2.1379909 × 10^6
Prime Factorization
21379909
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21379909
Product of the distinct prime numbers
The prime factorization of 21379909 is 21379909.
Since it has a total of 1 prime factors.
6 , 5 , 30 , 44 , 722 , 998 , 1306 , 1914 , 85028 , 87395 , 779609 , 643592 , 4856265 , 7051834 , 62164646 , 33568541 , 63624151 , 973414171 , 4452205160 , 3720833705
n×2
42759818
n×3
64139727
n×4
85519636
n×5
106899545
n÷2
10689954.5
n÷3
7126636.3333333
n÷3
5344977.25
n÷5
4275981.8
n2
457100508848281
n3
9.7727672830299E+21
n4
2.0894087518936E+29
n5
4.4671368979288E+36
2 √n
4623.8413683862
3 √n
277.5461990555
4 √n
67.998833581071
5 √n
29.241602587905
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21379910
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10689955
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4623.8414765214
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999064542
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21379909 can be divided by 2 positive divisors.
The sum of these divisors (counting 21379909) is 21379910, the average is 10689955.
Base
System
Value
2
Binary
1010001100011101101000101
3
Ternary
1111020012201111
4
Quaternary
1101203231011
5
Quinary
20433124114
6
Senary
2042125021
8
Octal
121435505
10
Decimal
21379909
12
Duodecimal
71b0771
16
Hexadecimal
1463b45
20
Vigesimal
6dc9f9
36
Base36
cq8ud
md5
918420c4b475f1dcbf20c0ac45d3a95d
sha1
f92eaea66929c1af0278d059747e10c2e8d35081
sha256
01be8ae6e65d68c5e5990fe00c55ac4f7851d52433bcd73b1ebc3db03e9d9f69
sha512
9389f6505c0b7d708b72de24b4094c53151155b88df9d9ad677b570219f1b44ac917dd3133002c48c4e12856080c779af4080c4cff9ebd0ca5cae3fa6f706c65
ripemd-160
2fc3f8617839ab6d00afdb1f0524b72ab3c4ed56
Diameter
42759818
Circumference
134333930.09764
Area
1.4360236005499E+15
Volume
4.0936071868813E+22
Surface area
5.7440944021997E+15
Circumference
134333930.09764
Perimeter
85519636
Area
457100508848281
Diagonal
30235757.270103
Surface area
2742603053089686
Volume
9.7727672830299E+21
Space diagonal
37031088.649199
Perimeter
64139727
Area
1.979303263727E+14
Altitude
18515544.3246
Surface area
1.979303263727E+14
Volume
1.1517316694648E+21
Height
10078585.756701