21031398 is an even 8-digits composite number following 21031397
and preceding 21031399 . In scientific notation, it is written as 2.1031398 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 7010460 positive integers (up to 21031398) that are relatively prime to 21031398.
21031398 has 8 divisors, whose sum is 35052360
The reverse of 21031398 is 89313012
Previous prime number is 9
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million thirty-one thousand three hundred ninety-eight
Scientific notation
2.1031398 × 10^7
Engineering notation
2.1031398 × 10^6
Prime Factorization
2 × 9 × 1168411
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031398
Product of the distinct prime numbers
The prime factorization of 21031398 is 2 × 9 × 1168411.
Since it has a total of 3 prime factors.
10 , 5 , 31 , 24 , 547 , 512 , 2067 , 7181 , 50619 , 47380 , 102776 , 206899 , 5363950 , 6390185 , 65067496 , 36716397 , 16583858 , 487220475 , 7643480393 , 5415768000
n×2
42062796
n×3
63094194
n×4
84125592
n×5
105156990
n÷2
10515699
n÷3
7010466
n÷3
5257849.5
n÷5
4206279.6
n2
442319701834404
n3
9.3026016925207E+21
n4
1.9564671863088E+29
n5
4.11472400692E+36
2 √n
4586.0002180549
3 √n
276.02984869369
4 √n
67.720013423322
5 √n
29.145642155619
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
-21031397
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 21031398 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031398) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110100111100110
3
Ternary
1110120111122200
4
Quaternary
1100032213212
5
Quinary
20341001043
6
Senary
2030435330
8
Octal
120164746
10
Decimal
21031398
12
Duodecimal
7062b46
16
Hexadecimal
140e9e6
20
Vigesimal
6b8i9i
36
Base36
cirxi
md5
6a1e5b31f6eb6e41017c1f0cab1d4372
sha1
047ff42be3d4ae5adf9642b559154bb46ab83931
sha256
30bb33c39b1cc84680dcce77d71a24d09029cd3e1b5acb1eb50e1dd43078f1d4
sha512
2d5372d5efd650f826c7e2529c52482341c2cd40ca8a6b72c098f4d759eba204cc06efb0956f56d7125dadd7ff9eb74c0441a062d692d65821edfbe3da27c8b1
ripemd-160
9b1c26437a0e7d8f75087dee25600d466170660f
Diameter
42062796
Circumference
132144170.90305
Area
1.389588325821E+15
Volume
3.896664684866E+22
Surface area
5.558353303284E+15
Circumference
132144170.90305
Perimeter
84125592
Area
442319701834404
Diagonal
29742888.287266
Surface area
2653918211006424
Volume
9.3026016925207E+21
Space diagonal
36427449.890202
Perimeter
63094194
Area
1.9153004919148E+14
Altitude
18213724.945101
Surface area
1.9153004919148E+14
Volume
1.0963221232431E+21
Height
9914296.0957555