20921650 is an even 8-digits composite number following 20921649
and preceding 20921651 . In scientific notation, it is written as 2.0921650 × 10^7.
The sum of its digits is 25. It has a total of 5 prime factors and 32 positive divisors.
There are 7922880 positive integers (up to 20921650) that are relatively prime to 20921650.
20921650 has 32 divisors, whose sum is 34429824
The reverse of 20921650 is 05612902
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million nine hundred twenty-one thousand six hundred fifty
Scientific notation
2.0921650 × 10^7
Engineering notation
2.0921650 × 10^6
Prime Factorization
2 × 25 × 43 × 37 × 263
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20921650
Product of the distinct prime numbers
The prime factorization of 20921650 is 2 × 25 × 43 × 37 × 263.
Since it has a total of 5 prime factors.
9 , 10 , 99 , 3 , 724 , 928 , 691 , 8566 , 30930 , 31770 , 650605 , 297061 , 7480474 , 4817190 , 71552999 , 42219335 , 25004435 , 877782581 , 3587785766 , 2972823181
n×2
41843300
n×3
62764950
n×4
83686600
n×5
104608250
n÷2
10460825
n÷3
6973883.3333333
n÷3
5230412.5
n÷5
4184330
n2
437715438722500
n3
9.1577292085486E+21
n4
1.9159480529603E+29
n5
4.0084794582217E+36
2 √n
4574.0190205114
3 √n
275.5488762135
4 √n
67.631494294533
5 √n
29.11516036294
1 , 2 , 25 , 37 , 43 , 50 , 74 , 86 , 263 , 526 , 925 , 1075 , 1591 , 1850 , 2150 , 3182 , 6575 , 9731 , 11309 , 13150 , 19462 , 22618 , 39775 , 79550 , 243275 , 282725 , 418433 , 486550 , 565450 , 836866 , 10460825 , 20921650
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921649
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921650 can be divided by 32 positive divisors.
The sum of these divisors (counting 20921650) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001111110011110100110010
3
Ternary
1110100221002221
4
Quaternary
1033303310302
5
Quinary
20323443100
6
Senary
2024231254
8
Octal
117636462
10
Decimal
20921650
12
Duodecimal
700b52a
16
Hexadecimal
13f3d32
20
Vigesimal
6af42a
36
Base36
cgf8y
md5
512b854510b1801f08bc4c1508389d62
sha1
f667464306f117f97375b3c61791291d0fc855e6
sha256
044c3cd178df72c4ae59c09eaa3a98279d6326584f4114cde95bafd8f6d64bda
sha512
925faf46244d0cb8281e1d3753f0265620e2cb259c049da516923dc6c31566b684f8929e51af49cf490f2a953348ca983193dc2989380284fc71855fe3cace12
ripemd-160
e4a44dedd2fd950cdb0e3be6543f6ed90e11e0f3
Diameter
41843300
Circumference
131454603.88195
Area
1.3751236066534E+15
Volume
3.8359806406855E+22
Surface area
5.5004944266138E+15
Circumference
131454603.88195
Perimeter
83686600
Area
437715438722500
Diagonal
29587681.177223
Surface area
2626292632335000
Volume
9.1577292085486E+21
Space diagonal
36237360.778173
Perimeter
62764950
Area
1.8953634478117E+14
Altitude
18118680.389087
Surface area
1.8953634478117E+14
Volume
1.0792487372725E+21
Height
9862560.3924077