21158047 is an odd 8-digits composite number following 21158046
and preceding 21158048 . In scientific notation, it is written as 2.1158047 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 19913440 positive integers (up to 21158047) that are relatively prime to 21158047.
21158047 has 4 divisors, whose sum is 22402656
The reverse of 21158047 is 74085112
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million one hundred fifty-eight thousand forty-seven
Scientific notation
2.1158047 × 10^7
Engineering notation
2.1158047 × 10^6
Prime Factorization
17 × 1244591
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21158047
Product of the distinct prime numbers
The prime factorization of 21158047 is 17 × 1244591.
Since it has a total of 2 prime factors.
7 , 9 , 100 , 46 , 769 , 869 , 3178 , 5513 , 5483 , 35814 , 500809 , 301974 , 4802938 , 2737849 , 44275377 , 66880307 , 439779997 , 309084829 , 1033317098 , 5253144260
n×2
42316094
n×3
63474141
n×4
84632188
n×5
105790235
n÷2
10579023.5
n÷3
7052682.3333333
n÷3
5289511.75
n÷5
4231609.4
n2
447662952854209
n3
9.4716737966481E+21
n4
2.0040211935815E+29
n5
4.2401174602793E+36
2 √n
4599.7877124928
3 √n
276.58281502702
4 √n
67.82173480893
5 √n
29.180660341739
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21158046
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21158047 can be divided by 4 positive divisors.
The sum of these divisors (counting 21158047) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000101101100010011111
3
Ternary
1110210221101101
4
Quaternary
1100231202133
5
Quinary
20404024142
6
Senary
2033253531
8
Octal
120554237
10
Decimal
21158047
12
Duodecimal
71042a7
16
Hexadecimal
142d89f
20
Vigesimal
6c4f27
36
Base36
clhnj
md5
6700ab49e10fff3724a027c24009b7f1
sha1
27c6644f880326fd948c191f38ce714ee82ff83a
sha256
0933bd34925360b88a42fe0cf3e458e53d4dac8f8588587ef5c01477036616ca
sha512
90586d6985689199ac790362ef223a78a6214d8813a4595a0f0e30346c82a4a7dc22a3769a9428d42d6793725333591c193952fc5f406c92d8aae2cd12f29439
ripemd-160
fcf9a9f3e7504b17784e38cefb216e65a3eb3a48
Diameter
42316094
Circumference
132939930.03902
Area
1.4063746439711E+15
Volume
3.9674854422332E+22
Surface area
5.6254985758844E+15
Circumference
132939930.03902
Perimeter
84632188
Area
447662952854209
Diagonal
29921997.020727
Surface area
2685977717125254
Volume
9.4716737966481E+21
Space diagonal
36646812.39293
Perimeter
63474141
Area
1.9384374475245E+14
Altitude
18323406.196465
Surface area
1.9384374475245E+14
Volume
1.1162474617995E+21
Height
9973999.0069091