21870086 is an even 8-digits composite number following 21870085
and preceding 21870087 . In scientific notation, it is written as 2.1870086 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 9218880 positive integers (up to 21870086) that are relatively prime to 21870086.
21870086 has 16 divisors, whose sum is 38107680
The reverse of 21870086 is 68007812
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million eight hundred seventy thousand eighty-six
Scientific notation
2.1870086 × 10^7
Engineering notation
2.1870086 × 10^6
Prime Factorization
2 × 7 × 61 × 25609
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21870086
Product of the distinct prime numbers
The prime factorization of 21870086 is 2 × 7 × 61 × 25609.
Since it has a total of 4 prime factors.
10 , 8 , 40 , 96 , 65 , 898 , 3605 , 3707 , 69012 , 41730 , 381725 , 255060 , 8219999 , 17604 , 54425376 , 60655250 , 101761470 , 828553345 , 5544322443 , 8916853933
n×2
43740172
n×3
65610258
n×4
87480344
n×5
109350430
n÷2
10935043
n÷3
7290028.6666667
n÷3
5467521.5
n÷5
4374017.2
n2
478300661647396
n3
1.0460476604085E+22
n4
2.2877152293234E+29
n5
5.0032528808812E+36
2 √n
4676.5463752646
3 √n
279.65129209503
4 √n
68.385278936804
5 √n
29.374473972785
1 , 2 , 7 , 14 , 61 , 122 , 427 , 854 , 25609 , 51218 , 179263 , 358526 , 1562149 , 3124298 , 10935043 , 21870086
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
-21870085
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 21870086 can be divided by 16 positive divisors.
The sum of these divisors (counting 21870086) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011011011011000000110
3
Ternary
1112011010010012
4
Quaternary
1103123120012
5
Quinary
21044320321
6
Senary
2100430222
8
Octal
123333006
10
Decimal
21870086
12
Duodecimal
73a8372
16
Hexadecimal
14db606
20
Vigesimal
6gdf46
36
Base36
d0r2e
md5
3e3c9348e48498b59cff245fdd06f414
sha1
b7f83fdc0405a265ffd4c2b7d5764c4b448560af
sha256
b7a22a892d73151f9734b6a6b651e7f3973a2f3970a40f6c023cb3b84be57fd4
sha512
393c12d82bf79f87433aedf19c980084da472cb566f6a5f9125d829423b47040e600e297f2344b7f281bedd94cc6a5408817e24c8ad517e22b4bfdd3cbe04f79
ripemd-160
1da5a427a2ede753935e053a5a6672e81396e23e
Diameter
43740172
Circumference
137413803.02195
Area
1.5026258448386E+15
Volume
4.381674193659E+22
Surface area
6.0105033793544E+15
Circumference
137413803.02195
Perimeter
87480344
Area
478300661647396
Diagonal
30928972.231466
Surface area
2869803969884376
Volume
1.0460476604085E+22
Space diagonal
37880100.117901
Perimeter
65610258
Area
2.0711026181678E+14
Altitude
18940050.05895
Surface area
2.0711026181678E+14
Volume
1.2327789901987E+21
Height
10309657.410489