21017842 is an even 8-digits composite number following 21017841
and preceding 21017843 . In scientific notation, it is written as 2.1017842 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 10502244 positive integers (up to 21017842) that are relatively prime to 21017842.
21017842 has 8 divisors, whose sum is 31546800
The reverse of 21017842 is 24871012
Previous prime number is 4139
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million seventeen thousand eight hundred forty-two
Scientific notation
2.1017842 × 10^7
Engineering notation
2.1017842 × 10^6
Prime Factorization
2 × 4139 × 2539
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21017842
Product of the distinct prime numbers
The prime factorization of 21017842 is 2 × 4139 × 2539.
Since it has a total of 3 prime factors.
10 , 5 , 14 , 39 , 89 , 732 , 5621 , 7732 , 48468 , 9265 , 688354 , 661080 , 4931411 , 3607511 , 84662583 , 76262160 , 62991214 , 437237671 , 3885947536 , 7805922934
n×2
42035684
n×3
63053526
n×4
84071368
n×5
105089210
n÷2
10508921
n÷3
7005947.3333333
n÷3
5254460.5
n÷5
4203568.4
n2
441749682336964
n3
9.2846250269085E+21
n4
1.9514278184481E+29
n5
4.1014801562547E+36
2 √n
4584.5220034372
3 √n
275.97053000474
4 √n
67.709098380035
5 √n
29.141883962936
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
-21017841
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 21017842 can be divided by 8 positive divisors.
The sum of these divisors (counting 21017842) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001011010011110010
3
Ternary
1110112211001121
4
Quaternary
1100023103302
5
Quinary
20340032332
6
Senary
2030252454
8
Octal
120132362
10
Decimal
21017842
12
Duodecimal
705712a
16
Hexadecimal
140b4f2
20
Vigesimal
6b74c2
36
Base36
cihgy
md5
2e0f295c580003bab0b8194ce34aeae1
sha1
87d5ad2abf6436a5bfd04dda60e7f64eb8b037ce
sha256
e53074fe1bf8a84b47ef6042cd04db03ace5d2bde4d1aaa09b2ed6d6727ea3b0
sha512
c9e33d52399a4c777546e77e70921fe6b2be0dbf38549ed2366f9c9a535ff5ac7f0ba47e375fcb7d7b76d2cdf554b8523468605878db774ff6236e05efe41436
ripemd-160
501b77f18ed04908051ef78e382a0df23ca99f5f
Diameter
42035684
Circumference
132058996.04302
Area
1.3877975567554E+15
Volume
3.8891346367829E+22
Surface area
5.5511902270217E+15
Circumference
132058996.04302
Perimeter
84071368
Area
441749682336964
Diagonal
29723717.208215
Surface area
2650498094021784
Volume
9.2846250269085E+21
Space diagonal
36403970.209455
Perimeter
63053526
Area
1.9128322350876E+14
Altitude
18201985.104728
Surface area
1.9128322350876E+14
Volume
1.0942035528836E+21
Height
9907905.7360716