20921874 is an even 8-digits composite number following 20921873
and preceding 20921875 . In scientific notation, it is written as 2.0921874 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 6973956 positive integers (up to 20921874) that are relatively prime to 20921874.
20921874 has 8 divisors, whose sum is 41843760
The reverse of 20921874 is 47812902
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million nine hundred twenty-one thousand eight hundred seventy-four
Scientific notation
2.0921874 × 10^7
Engineering notation
2.0921874 × 10^6
Prime Factorization
2 × 3 × 3486979
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921874
Product of the distinct prime numbers
The prime factorization of 20921874 is 2 × 3 × 3486979.
Since it has a total of 3 prime factors.
1 , 5 , 74 , 100 , 628 , 849 , 4813 , 1530 , 86623 , 47193 , 245587 , 286846 , 4248376 , 2726113 , 80354151 , 28533001 , 621288163 , 10432853 , 5719016157 , 2786813178
n×2
41843748
n×3
62765622
n×4
83687496
n×5
104609370
n÷2
10460937
n÷3
6973958
n÷3
5230468.5
n÷5
4184374.8
n2
437724811671876
n3
9.1580233564727E+21
n4
1.9160301075318E+29
n5
4.0086940489987E+36
2 √n
4574.0435065705
3 √n
275.54985960834
4 √n
67.631675319857
5 √n
29.115222707621
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
-20921873
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 20921874 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921874) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011111000010010
3
Ternary
1110100221102020
4
Quaternary
1033303320102
5
Quinary
20323444444
6
Senary
2024232310
8
Octal
117637022
10
Decimal
20921874
12
Duodecimal
700b696
16
Hexadecimal
13f3e12
20
Vigesimal
6af4de
36
Base36
cgff6
md5
8ee19b1ae554ff4698eb8dfe59d1c072
sha1
1b225019e4fbc8c1e9a775fe3cbea409f5cb9432
sha256
36d4ad36faef9470ba02db753618533a8d7c3828031dd03f6f67306ecfedf905
sha512
4e195e1a5100c42fa15dac2cea6da61b6102d8ae0adfccd70e61fdcb1965eaa7d7010efdab296a86d8329c9ad6d0df0a4f44a9c374f2e0245320791d76ec6b8a
ripemd-160
8675cb442dd1849bbc184fdfeb9beee24a12761b
Diameter
41843748
Circumference
131456011.31546
Area
1.3751530526423E+15
Volume
3.8361038530798E+22
Surface area
5.5006122105694E+15
Circumference
131456011.31546
Perimeter
83687496
Area
437724811671876
Diagonal
29587997.961061
Surface area
2626348870031256
Volume
9.1580233564727E+21
Space diagonal
36237748.757554
Perimeter
62765622
Area
1.895404033873E+14
Altitude
18118874.378777
Surface area
1.895404033873E+14
Volume
1.0792834029378E+21
Height
9862665.9870203