21239969 is an odd 8-digits prime number following 21239968
and preceding 21239970 . In scientific notation, it is written as 2.1239969 × 10^7.
The sum of its digits is 41. It has a total of 1 prime factors and 2 positive divisors.
There are 21239968 positive integers (up to 21239969) that are relatively prime to 21239969.
21239969 has 2 divisors, whose sum is 21239970
The reverse of 21239969 is 96993212
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million two hundred thirty-nine thousand nine hundred sixty-nine
Scientific notation
2.1239969 × 10^7
Engineering notation
2.1239969 × 10^6
Prime Factorization
21239969
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21239969
Product of the distinct prime numbers
The prime factorization of 21239969 is 21239969.
Since it has a total of 1 prime factors.
2 , 5 , 39 , 98 , 298 , 631 , 874 , 427 , 74325 , 78684 , 203955 , 137394 , 5666909 , 2333725 , 26930771 , 82249855 , 980720953 , 631890836 , 4405175055 , 8548448792
n×2
42479938
n×3
63719907
n×4
84959876
n×5
106199845
n÷2
10619984.5
n÷3
7079989.6666667
n÷3
5309992.25
n÷5
4247993.8
n2
451136283120961
n3
9.5821206682644E+21
n4
2.035239459482E+29
n5
4.3228423026974E+36
2 √n
4608.6840855064
3 √n
276.9393229884
4 √n
67.887289572544
5 √n
29.203222388771
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21239970
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10619985
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4608.6841939972
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999058379
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21239969 can be divided by 2 positive divisors.
The sum of these divisors (counting 21239969) is 21239970, the average is 10619985.
Base
System
Value
2
Binary
1010001000001100010100001
3
Ternary
1110222002202112
4
Quaternary
1101001202201
5
Quinary
20414134334
6
Senary
2035125105
8
Octal
121014241
10
Decimal
21239969
12
Duodecimal
7143795
16
Hexadecimal
14418a1
20
Vigesimal
6ceji9
36
Base36
cn8v5
md5
d5cb5a834de009d04ff3cbdb71350d14
sha1
eeb15cdf2478cefbe3db6c651fb7e8d908b11c92
sha256
31eceaf56680482ed3f040de88ab50597d139e191d18be7635e687b9d0659e8a
sha512
ba57be987c7361690a201c733b2522b9fbf86b3b6ebb6003fc6c55e765e8f61df62f649a1339225626a6b42e280892e48ec45c69b6fe4f0bc4196b59a92c854e
ripemd-160
8e9b1cc0ca10dec91c389b023f7455246cc6f02d
Diameter
42479938
Circumference
133454661.14575
Area
1.4172864328206E+15
Volume
4.0137493196307E+22
Surface area
5.6691457312825E+15
Circumference
133454661.14575
Perimeter
84959876
Area
451136283120961
Diagonal
30037852.224184
Surface area
2706817698725766
Volume
9.5821206682644E+21
Space diagonal
36788705.459188
Perimeter
63719907
Area
1.9534774087582E+14
Altitude
18394352.729594
Surface area
1.9534774087582E+14
Volume
1.1292637504463E+21
Height
10012617.408061