21085958 is an even 8-digits composite number following 21085957
and preceding 21085959 . In scientific notation, it is written as 2.1085958 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 10179400 positive integers (up to 21085958) that are relatively prime to 21085958.
21085958 has 8 divisors, whose sum is 32719680
The reverse of 21085958 is 85958012
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million eighty-five thousand nine hundred fifty-eight
Scientific notation
2.1085958 × 10^7
Engineering notation
2.1085958 × 10^6
Prime Factorization
2 × 29 × 363551
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21085958
Product of the distinct prime numbers
The prime factorization of 21085958 is 2 × 29 × 363551.
Since it has a total of 3 prime factors.
3 , 4 , 6 , 22 , 984 , 232 , 2698 , 5972 , 23449 , 42457 , 657441 , 105984 , 1109585 , 1706041 , 51375948 , 27081935 , 758565270 , 37112418 , 2051832186 , 8527877030
n×2
42171916
n×3
63257874
n×4
84343832
n×5
105429790
n÷2
10542979
n÷3
7028652.6666667
n÷3
5271489.5
n÷5
4217191.6
n2
444617624777764
n3
9.3751885621237E+21
n4
1.9768483226302E+29
n5
4.1683740703351E+36
2 √n
4591.9449038507
3 √n
276.26833631351
4 √n
67.763890855312
5 √n
29.160748509318
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
-21085957
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 21085958 can be divided by 8 positive divisors.
The sum of these divisors (counting 21085958) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011011111100000110
3
Ternary
1110200021111102
4
Quaternary
1100123330012
5
Quinary
20344222313
6
Senary
2031540102
8
Octal
120337406
10
Decimal
21085958
12
Duodecimal
708a632
16
Hexadecimal
141bf06
20
Vigesimal
6bfehi
36
Base36
cjy12
md5
3fa23064ddd0cc769d3bfc7fa13feb9f
sha1
ebf6bdc5798ea68ab46f3d752c00607b4a86d86f
sha256
078a52bb9b6dd348b7eb107f0b952ff63c0df788831629de424b6bf6ecc20d1b
sha512
2358718c2c2e71e925cbe75309a05631db1928d5ddb19fa32692c05bf1c04047baa44c55f5d90385a48bae2c57c1563c2b7b9286f6e86d776e5d4f01a876f5dc
ripemd-160
db966b3b36cf104f82ed1bd9e9089a55ac802e26
Diameter
42171916
Circumference
132486981.49341
Area
1.3968074636584E+15
Volume
3.9270698017049E+22
Surface area
5.5872298546335E+15
Circumference
132486981.49341
Perimeter
84343832
Area
444617624777764
Diagonal
29820047.779229
Surface area
2667705748666584
Volume
9.3751885621237E+21
Space diagonal
36521950.582263
Perimeter
63257874
Area
1.9252507901392E+14
Altitude
18260975.291132
Surface area
1.9252507901392E+14
Volume
1.1048765678634E+21
Height
9940015.9264098