21351207 is an odd 8-digits composite number following 21351206
and preceding 21351208 . In scientific notation, it is written as 2.1351207 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 13830912 positive integers (up to 21351207) that are relatively prime to 21351207.
21351207 has 16 divisors, whose sum is 29283840
The reverse of 21351207 is 70215312
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million three hundred fifty-one thousand two hundred seven
Scientific notation
2.1351207 × 10^7
Engineering notation
2.1351207 × 10^6
Prime Factorization
3 × 929 × 47 × 163
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21351207
Product of the distinct prime numbers
The prime factorization of 21351207 is 3 × 929 × 47 × 163.
Since it has a total of 4 prime factors.
10 , 9 , 58 , 31 , 511 , 306 , 1256 , 1886 , 58966 , 78935 , 789783 , 447500 , 2390871 , 377629 , 63735852 , 89286628 , 370806995 , 406277037 , 8766432738 , 7063993084
n×2
42702414
n×3
64053621
n×4
85404828
n×5
106756035
n÷2
10675603.5
n÷3
7117069
n÷3
5337801.75
n÷5
4270241.4
n2
455874040356849
n3
9.7334610015854E+21
n4
2.0782114067128E+29
n5
4.4372321934486E+36
2 √n
4620.7366295862
3 √n
277.42194379566
4 √n
67.976000394156
5 √n
29.233747142565
1 , 3 , 47 , 141 , 163 , 489 , 929 , 2787 , 7661 , 22983 , 43663 , 130989 , 151427 , 454281 , 7117069 , 21351207
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21351206
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21351207 can be divided by 16 positive divisors.
The sum of these divisors (counting 21351207) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001011100101100100111
3
Ternary
1111011202100110
4
Quaternary
1101130230213
5
Quinary
20431214312
6
Senary
2041344103
8
Octal
121345447
10
Decimal
21351207
12
Duodecimal
7198033
16
Hexadecimal
145cb27
20
Vigesimal
6d8i07
36
Base36
cpmp3
md5
517b3cac23c2b7f50aa5a9daa6e1e4bf
sha1
77208f5b35100c5ce88f61d4107cbb26f971be86
sha256
54f3284fb573838dffb4872cd186f8a466d3e12fd49a14ab6914f70eac32ab6e
sha512
2e072a3b45e9d91f09ee2f924562a4267aacbb7c3877506a138506fd0f9c1378fac34372d266f10ce3b38ddffd8faeb4bf5a86a2e889d48dea49355ff99962de
ripemd-160
8bea57694418c788307e4381b9e8443f71feb1b7
Diameter
42702414
Circumference
134153590.11295
Area
1.4321705361474E+15
Volume
4.0771426102111E+22
Surface area
5.7286821445895E+15
Circumference
134153590.11295
Perimeter
85404828
Area
455874040356849
Diagonal
30195166.512435
Surface area
2735244242141094
Volume
9.7334610015854E+21
Space diagonal
36981375.32692
Perimeter
64053621
Area
1.9739924993744E+14
Altitude
18490687.66346
Surface area
1.9739924993744E+14
Volume
1.1470993797726E+21
Height
10065055.504145