20921610 is an even 8-digits composite number following 20921609
and preceding 20921611 . In scientific notation, it is written as 2.0921610 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 5579088 positive integers (up to 20921610) that are relatively prime to 20921610.
20921610 has 16 divisors, whose sum is 50211936
The reverse of 20921610 is 01612902
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million nine hundred twenty-one thousand six hundred ten
Scientific notation
2.0921610 × 10^7
Engineering notation
2.0921610 × 10^6
Prime Factorization
2 × 3 × 5 × 697387
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20921610
Product of the distinct prime numbers
The prime factorization of 20921610 is 2 × 3 × 5 × 697387.
Since it has a total of 4 prime factors.
9 , 10 , 19 , 17 , 219 , 36 , 5778 , 3720 , 26370 , 64483 , 500017 , 455758 , 5386725 , 6259348 , 53120110 , 1226284 , 915054095 , 221871824 , 4247832656 , 3379688332
n×2
41843220
n×3
62764830
n×4
83686440
n×5
104608050
n÷2
10460805
n÷3
6973870
n÷3
5230402.5
n÷5
4184322
n2
437713764992100
n3
9.1576766827964E+21
n4
1.9159334006356E+29
n5
4.0084411394072E+36
2 √n
4574.014647987
3 √n
275.54870060654
4 √n
67.631461968429
5 √n
29.115149229905
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 697387 , 1394774 , 2092161 , 3486935 , 4184322 , 6973870 , 10460805 , 20921610
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921609
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921610 can be divided by 16 positive divisors.
The sum of these divisors (counting 20921610) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111110011110100001010
3
Ternary
1110100221001110
4
Quaternary
1033303310022
5
Quinary
20323442420
6
Senary
2024231150
8
Octal
117636412
10
Decimal
20921610
12
Duodecimal
700b4b6
16
Hexadecimal
13f3d0a
20
Vigesimal
6af40a
36
Base36
cgf7u
md5
b615367a31daf64be8c10058b1f25fa6
sha1
deaa88faed264b3859edb0a0a436a11f060bb05a
sha256
c662e143c2b9654e05f02df96affe84fb045d6c70e86616f185991414edfbdbf
sha512
3983df8c62d38bc1f78dcb37ffa07ddbf1ec278904a1f611fab80b43d784e66f4290528f3d0af9587e019738462a3e3db80af6160e1347f5b4b2a230037a596e
ripemd-160
9159e2a05f6c2e03dc9ee497aae504fc434b6ecc
Diameter
41843220
Circumference
131454352.55454
Area
1.3751183484743E+15
Volume
3.8359586387498E+22
Surface area
5.5004733938972E+15
Circumference
131454352.55454
Perimeter
83686440
Area
437713764992100
Diagonal
29587624.608681
Surface area
2626282589952600
Volume
9.1576766827964E+21
Space diagonal
36237291.496141
Perimeter
62764830
Area
1.8953562003465E+14
Altitude
18118645.748071
Surface area
1.8953562003465E+14
Volume
1.0792425470532E+21
Height
9862541.5362269