20921442 is an even 8-digits composite number following 20921441
and preceding 20921443 . In scientific notation, it is written as 2.0921442 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 6973812 positive integers (up to 20921442) that are relatively prime to 20921442.
20921442 has 8 divisors, whose sum is 41842896
The reverse of 20921442 is 24412902
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million nine hundred twenty-one thousand four hundred forty-two
Scientific notation
2.0921442 × 10^7
Engineering notation
2.0921442 × 10^6
Prime Factorization
2 × 3 × 3486907
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921442
Product of the distinct prime numbers
The prime factorization of 20921442 is 2 × 3 × 3486907.
Since it has a total of 3 prime factors.
1 , 7 , 48 , 86 , 766 , 171 , 3190 , 1915 , 38257 , 13672 , 297012 , 755238 , 5936319 , 3031408 , 27854475 , 60696136 , 416522829 , 649290889 , 6978364129 , 2844714572
n×2
41842884
n×3
62764326
n×4
83685768
n×5
104607210
n÷2
10460721
n÷3
6973814
n÷3
5230360.5
n÷5
4184288.4
n2
437706735359364
n3
9.1574560768303E+21
n4
1.9158718617895E+29
n5
4.0082802035862E+36
2 √n
4573.9962833391
3 √n
275.54796305486
4 √n
67.631326198287
5 √n
29.115102470972
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
-20921441
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 20921442 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921442) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011110001100010
3
Ternary
1110100220211020
4
Quaternary
1033303301202
5
Quinary
20323441232
6
Senary
2024230310
8
Octal
117636142
10
Decimal
20921442
12
Duodecimal
700b396
16
Hexadecimal
13f3c62
20
Vigesimal
6af3c2
36
Base36
cgf36
md5
193cfdcb48ce1cc3ff04c3f300d8e73e
sha1
62f1a808eafeaa610600cc12d1761180ad3618e6
sha256
3348b4bede81f49918165a3cbcc427ccff15efc05eea9491008bb3a7c969e367
sha512
e1d060290d5d2d2a7b27dca1fb597c1b59bcfa66636056318715b741f952ab0f7490e20c3695887eba5376a9a066d70e937caa7ad08839650ffd1db14a848cb6
ripemd-160
0186efe4f617eab21e94a493c2702c50e4e88888
Diameter
41842884
Circumference
131453296.97941
Area
1.3750962642317E+15
Volume
3.8358662315388E+22
Surface area
5.500385056927E+15
Circumference
131453296.97941
Perimeter
83685768
Area
437706735359364
Diagonal
29587387.020802
Surface area
2626240412156184
Volume
9.1574560768303E+21
Space diagonal
36237000.511605
Perimeter
62764326
Area
1.8953257611438E+14
Altitude
18118500.255803
Surface area
1.8953257611438E+14
Volume
1.0792165483908E+21
Height
9862462.3402674