21031919 is an odd 8-digits composite number following 21031918
and preceding 21031920 . In scientific notation, it is written as 2.1031919 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 20194200 positive integers (up to 21031919) that are relatively prime to 21031919.
21031919 has 8 divisors, whose sum is 21880320
The reverse of 21031919 is 91913012
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million thirty-one thousand nine hundred nineteen
Scientific notation
2.1031919 × 10^7
Engineering notation
2.1031919 × 10^6
Prime Factorization
31 × 131 × 5179
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031919
Product of the distinct prime numbers
The prime factorization of 21031919 is 31 × 131 × 5179.
Since it has a total of 3 prime factors.
8 , 10 , 68 , 92 , 479 , 636 , 5942 , 9921 , 60805 , 78730 , 79958 , 511959 , 6640945 , 1321433 , 55191688 , 35379418 , 739168399 , 711143155 , 5210183087 , 7149391169
n×2
42063838
n×3
63095757
n×4
84127676
n×5
105159595
n÷2
10515959.5
n÷3
7010639.6666667
n÷3
5257979.75
n÷5
4206383.8
n2
442341616822561
n3
9.3032930553411E+21
n4
1.956661059732E+29
n5
4.1152336918737E+36
2 √n
4586.0570210149
3 √n
276.03212799
4 √n
67.720432817687
5 √n
29.145786556187
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
-21031918
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 21031919 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031919) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110101111101111
3
Ternary
1110120112100222
4
Quaternary
1100032233233
5
Quinary
20341010134
6
Senary
2030441555
8
Octal
120165757
10
Decimal
21031919
12
Duodecimal
70632bb
16
Hexadecimal
140ebef
20
Vigesimal
6b8jfj
36
Base36
cisbz
md5
3758bc778e9882f413f3beb0c287f4bb
sha1
5ba26062981e3c317dafbee40cc04df791f4cb48
sha256
b0eb681763f9abc56be29c1edd9772fe4b7664fc0935e68af6a1b45d43900b90
sha512
750c74cbe6fccafd4586756c0190d3a408f4369a1eecad239d73dadf70b297d358a79ce4ede5a1fb03a991ccf98f38ada0bcc177f1ae08ba0adeca1e9c530c7c
ripemd-160
2861bb7be81158bda95325789aaf5af180a190e3
Diameter
42063838
Circumference
132147444.44259
Area
1.3896571737868E+15
Volume
3.896954282247E+22
Surface area
5.5586286951472E+15
Circumference
132147444.44259
Perimeter
84127676
Area
442341616822561
Diagonal
29743625.092532
Surface area
2654049700935366
Volume
9.3032930553411E+21
Space diagonal
36428352.288673
Perimeter
63095757
Area
1.9153953865971E+14
Altitude
18214176.144337
Surface area
1.9153953865971E+14
Volume
1.0964036011329E+21
Height
9914541.6975108