20921942 is an even 8-digits composite number following 20921941
and preceding 20921943 . In scientific notation, it is written as 2.0921942 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 10343344 positive integers (up to 20921942) that are relatively prime to 20921942.
20921942 has 8 divisors, whose sum is 31735800
The reverse of 20921942 is 24912902
Previous prime number is 89
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million nine hundred twenty-one thousand nine hundred forty-two
Scientific notation
2.0921942 × 10^7
Engineering notation
2.0921942 × 10^6
Prime Factorization
2 × 89 × 117539
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921942
Product of the distinct prime numbers
The prime factorization of 20921942 is 2 × 89 × 117539.
Since it has a total of 3 prime factors.
9 , 7 , 100 , 12 , 874 , 337 , 1633 , 1704 , 59075 , 78225 , 246894 , 975263 , 1597038 , 2994210 , 16546891 , 75060721 , 762567255 , 782971999 , 4141383354 , 5771102893
n×2
41843884
n×3
62765826
n×4
83687768
n×5
104609710
n÷2
10460971
n÷3
6973980.6666667
n÷3
5230485.5
n÷5
4184388.4
n2
437727657051364
n3
9.1581126526245E+21
n4
1.9160550174768E+29
n5
4.0087591944458E+36
2 √n
4574.0509398125
3 √n
275.55015813753
4 √n
67.631730273685
5 √n
29.11524163358
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
-20921941
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 20921942 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921942) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011111001010110
3
Ternary
1110100221111202
4
Quaternary
1033303321112
5
Quinary
20324000232
6
Senary
2024232502
8
Octal
117637126
10
Decimal
20921942
12
Duodecimal
700b732
16
Hexadecimal
13f3e56
20
Vigesimal
6af4h2
36
Base36
cgfh2
md5
4dc911f68809c1c88fd49522ccc41c7b
sha1
792a79e720756e49b6eddc9757e119f9a5bfefeb
sha256
9d0cb149707e4fba910f63def8c3dcc7267b6ce284000757b554a924fd7d2236
sha512
7177f2da277dc5a18d605dd3326ad29b2c32bba5ac2ab9aaf4fc5a331f2ad507b8fa7ba8976f5393419452547998cb111edc702ddb74f1aed79f3a7b80c77831
ripemd-160
21de0c2cf85e91fa8584ecc3265a9349f1da4503
Diameter
41843884
Circumference
131456438.57206
Area
1.3751619916656E+15
Volume
3.8361412573644E+22
Surface area
5.5006479666626E+15
Circumference
131456438.57206
Perimeter
83687768
Area
437727657051364
Diagonal
29588094.127583
Surface area
2626365942308184
Volume
9.1581126526245E+21
Space diagonal
36237866.537009
Perimeter
62765826
Area
1.8954163547276E+14
Altitude
18118933.268505
Surface area
1.8954163547276E+14
Volume
1.0792939265902E+21
Height
9862698.0425278