20921575 is an odd 8-digits composite number following 20921574
and preceding 20921576 . In scientific notation, it is written as 2.0921575 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 6 positive divisors.
There are 16737240 positive integers (up to 20921575) that are relatively prime to 20921575.
20921575 has 6 divisors, whose sum is 25942784
The reverse of 20921575 is 57512902
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million nine hundred twenty-one thousand five hundred seventy-five
Scientific notation
2.0921575 × 10^7
Engineering notation
2.0921575 × 10^6
Prime Factorization
5 × 5 × 836863
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
4184315
Product of the distinct prime numbers
The prime factorization of 20921575 is 5 × 5 × 836863.
Since it has a total of 3 prime factors.
8 , 6 , 44 , 27 , 907 , 575 , 817 , 6022 , 42917 , 15935 , 670651 , 978647 , 205529 , 8293449 , 24772483 , 48394329 , 387155065 , 761920470 , 9489596348 , 2677407571
n×2
41843150
n×3
62764725
n×4
83686300
n×5
104607875
n÷2
10460787.5
n÷3
6973858.3333333
n÷3
5230393.75
n÷5
4184315
n2
437712300480625
n3
9.1576307229279E+21
n4
1.9159205799204E+29
n5
4.0084076106848E+36
2 √n
4574.0108220248
3 √n
275.54854695026
4 √n
67.63143368305
5 √n
29.115139488486
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921574
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921575 can be divided by 6 positive divisors.
The sum of these divisors (counting 20921575) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001111110011110011100111
3
Ternary
1110100221000011
4
Quaternary
1033303303213
5
Quinary
20323442300
6
Senary
2024231051
8
Octal
117636347
10
Decimal
20921575
12
Duodecimal
700b487
16
Hexadecimal
13f3ce7
20
Vigesimal
6af3if
36
Base36
cgf6v
md5
e5368653a479607d10c15ddabc46dbbb
sha1
25082c7a83c51ecfe1acb49e89fb34a5d7332ca6
sha256
8d67397648d60ad2626f7316b109fd77a43c1a00df9f25aedbd69118e31fc580
sha512
f4fb3cd952a7fed8f766b554ae96ed1a4901b57865cd678825d68f8ca760468e50662a1478d59dcc148d1aa049a0843f8b1e9a813cf2daa2e451ba446d9be6ee
ripemd-160
d62d585c65d0bb458ea191fc544fcdeda3c59f93
Diameter
41843150
Circumference
131454132.64306
Area
1.3751137475758E+15
Volume
3.8359393871251E+22
Surface area
5.5004549903033E+15
Circumference
131454132.64306
Perimeter
83686300
Area
437712300480625
Diagonal
29587575.111206
Surface area
2626273802883750
Volume
9.1576307229279E+21
Space diagonal
36237230.874363
Perimeter
62764725
Area
1.8953498588257E+14
Altitude
18118615.437181
Surface area
1.8953498588257E+14
Volume
1.0792371306308E+21
Height
9862525.0370686