21251708 is an even 8-digits composite number following 21251707
and preceding 21251709 . In scientific notation, it is written as 2.1251708 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 12 positive divisors.
There are 10399680 positive integers (up to 21251708) that are relatively prime to 21251708.
21251708 has 12 divisors, whose sum is 37982112
The reverse of 21251708 is 80715212
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million two hundred fifty-one thousand seven hundred eight
Scientific notation
2.1251708 × 10^7
Engineering notation
2.1251708 × 10^6
Prime Factorization
2 × 2 × 47 × 113041
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10625854
Product of the distinct prime numbers
The prime factorization of 21251708 is 2 × 2 × 47 × 113041.
Since it has a total of 4 prime factors.
5 , 6 , 33 , 77 , 227 , 697 , 3662 , 5208 , 34557 , 69062 , 435563 , 944849 , 2383684 , 360376 , 40691188 , 99437089 , 280418673 , 374157291 , 6743735184 , 7874951851
n×2
42503416
n×3
63755124
n×4
85006832
n×5
106258540
n÷2
10625854
n÷3
7083902.6666667
n÷3
5312927
n÷5
4250341.6
n2
451635092917264
n3
9.5980171172306E+21
n4
2.0397425715439E+29
n5
4.3348013525619E+36
2 √n
4609.957483535
3 √n
276.99033360856
4 √n
67.896667690948
5 √n
29.206449708594
1 , 2 , 4 , 47 , 94 , 188 , 113041 , 226082 , 452164 , 5312927 , 10625854 , 21251708
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21251707
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21251708 can be divided by 12 positive divisors.
The sum of these divisors (counting 21251708) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010001000100011001111100
3
Ternary
1110222200212022
4
Quaternary
1101010121330
5
Quinary
20420023313
6
Senary
2035255312
8
Octal
121043174
10
Decimal
21251708
12
Duodecimal
714a538
16
Hexadecimal
144467c
20
Vigesimal
6cg958
36
Base36
cnhx8
md5
65ae719dc0ce7d2ed9f3507a2d6a5be0
sha1
50f5b37605240605e924aba022d806cc943e4d5b
sha256
c4b3a738a933998f8edc2153cf08889183a9310f0ec05d891a4e80a226aff3d6
sha512
77b8633e0d337c75ffe4443e2182adc3621a8f712f776b1568bf6d9e5851125dd8ae57bf9563a5f840450a4434ca1f125684e19ffce63a5aa26c8ec0af5c0cd3
ripemd-160
47336919c4497e189c682590cda5dfcc0576c2f7
Diameter
42503416
Circumference
133528419.45807
Area
1.4188534900122E+15
Volume
4.0204080086027E+22
Surface area
5.6754139600489E+15
Circumference
133528419.45807
Perimeter
85006832
Area
451635092917264
Diagonal
30054453.677193
Surface area
2709810557503584
Volume
9.5980171172306E+21
Space diagonal
36809038.003618
Perimeter
63755124
Area
1.9556373185345E+14
Altitude
18404519.001809
Surface area
1.9556373185345E+14
Volume
1.131137164923E+21
Height
10018151.225731