21309957 is an odd 8-digits composite number following 21309956
and preceding 21309958 . In scientific notation, it is written as 2.1309957 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 14145768 positive integers (up to 21309957) that are relatively prime to 21309957.
21309957 has 8 divisors, whose sum is 23779200
The reverse of 21309957 is 75990312
Previous prime number is 239
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million three hundred nine thousand nine hundred fifty-seven
Scientific notation
2.1309957 × 10^7
Engineering notation
2.1309957 × 10^6
Prime Factorization
9 × 239 × 9907
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21309957
Product of the distinct prime numbers
The prime factorization of 21309957 is 9 × 239 × 9907.
Since it has a total of 3 prime factors.
6 , 6 , 19 , 37 , 639 , 863 , 6122 , 9309 , 14968 , 58839 , 231388 , 99416 , 572655 , 5571564 , 3179764 , 40113072 , 850956824 , 20182016 , 7654486752 , 3092840439
n×2
42619914
n×3
63929871
n×4
85239828
n×5
106549785
n÷2
10654978.5
n÷3
7103319
n÷3
5327489.25
n÷5
4261991.4
n2
454114267341849
n3
9.6771555101413E+21
n4
2.0621976780342E+29
n5
4.394534384441E+36
2 √n
4616.2708975969
3 √n
277.24317119012
4 √n
67.943144596029
5 √n
29.222442628935
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
-21309956
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 21309957 can be divided by 8 positive divisors.
The sum of these divisors (counting 21309957) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001010010101000000101
3
Ternary
1111002122202200
4
Quaternary
1101102220011
5
Quinary
20423404312
6
Senary
2040425113
8
Octal
121225005
10
Decimal
21309957
12
Duodecimal
7178199
16
Hexadecimal
1452a05
20
Vigesimal
6d3ehh
36
Base36
coqv9
md5
4ce5a2387595060003d100137b6d7fab
sha1
4ee694e9b3bd51d9a4f61bb74eaa31dd3c063872
sha256
8924e7e15b15bf9bfca324c02c48464209d5a4c9d51486011a33e2376cc06a8e
sha512
50e67a01063b29a3cee52a3a602307ee1f23772faad618e186533437dd73657e7c43f745c1870aedac4f58c8983e058003da2f072f132121e308dda5fab0a56e
ripemd-160
9b9be9ffdd4b0f0d01116a8c1e8891792a89b0af
Diameter
42619914
Circumference
133894408.71903
Area
1.4266420461715E+15
Volume
4.0535574211075E+22
Surface area
5.7065681846859E+15
Circumference
133894408.71903
Perimeter
85239828
Area
454114267341849
Diagonal
30136830.202987
Surface area
2724685604051094
Volume
9.6771555101413E+21
Space diagonal
36909928.231108
Perimeter
63929871
Area
1.966372458695E+14
Altitude
18454964.115554
Surface area
1.966372458695E+14
Volume
1.1404637139696E+21
Height
10045610.067662