20921384 is an even 8-digits composite number following 20921383
and preceding 20921385 . In scientific notation, it is written as 2.0921384 × 10^7.
The sum of its digits is 29. It has a total of 6 prime factors and 24 positive divisors.
There are 9509280 positive integers (up to 20921384) that are relatively prime to 20921384.
20921384 has 24 divisors, whose sum is 43119930
The reverse of 20921384 is 48312902
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million nine hundred twenty-one thousand three hundred eighty-four
Scientific notation
2.0921384 × 10^7
Engineering notation
2.0921384 × 10^6
Prime Factorization
2 × 2 × 2 × 11 × 11 × 21613
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
475486
Product of the distinct prime numbers
The prime factorization of 20921384 is 2 × 2 × 2 × 11 × 11 × 21613.
Since it has a total of 6 prime factors.
7 , 2 , 24 , 74 , 427 , 929 , 8138 , 4373 , 94410 , 42337 , 862571 , 68440 , 9628978 , 1482567 , 85169930 , 85703447 , 905374443 , 544265380 , 956127784 , 1647560597
n×2
41842768
n×3
62764152
n×4
83685536
n×5
104606920
n÷2
10460692
n÷3
6973794.6666667
n÷3
5230346
n÷5
4184276.8
n2
437704308475456
n3
9.1573799160695E+21
n4
1.9158506165798E+29
n5
4.0082246436102E+36
2 √n
4573.9899431459
3 √n
275.54770842301
4 √n
67.631279325072
5 √n
29.115086327938
1 , 2 , 4 , 8 , 11 , 22 , 44 , 88 , 121 , 242 , 484 , 968 , 21613 , 43226 , 86452 , 172904 , 237743 , 475486 , 950972 , 1901944 , 2615173 , 5230346 , 10460692 , 20921384
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921383
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921384 can be divided by 24 positive divisors.
The sum of these divisors (counting 20921384) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001111110011110000101000
3
Ternary
1110100220202002
4
Quaternary
1033303300220
5
Quinary
20323441014
6
Senary
2024230132
8
Octal
117636050
10
Decimal
20921384
12
Duodecimal
700b348
16
Hexadecimal
13f3c28
20
Vigesimal
6af394
36
Base36
cgf1k
md5
478997b2ebe139937444c390399c9bd0
sha1
cacd67d1f52b2d3368e337e223a1a142142ecf84
sha256
b7204555a07cb289e5ff68497d3475fca959dbcca715fe4549ad529d84af0c55
sha512
5cebd2f1a7db21f9eb1c1df2b9dd8237174bf0074701148b568667af799c91acca38c7f473ca4997f6b73b57f2e37d5cbe1fbe557ca7dc85de7bc2de6cb9423d
ripemd-160
4919e43288e4275cc03815d267f9a54e450a0380
Diameter
41842768
Circumference
131452932.55466
Area
1.3750886399511E+15
Volume
3.8358343293939E+22
Surface area
5.5003545598044E+15
Circumference
131452932.55466
Perimeter
83685536
Area
437704308475456
Diagonal
29587304.996415
Surface area
2626225850852736
Volume
9.1573799160695E+21
Space diagonal
36236900.052659
Perimeter
62764152
Area
1.8953152524282E+14
Altitude
18118450.026329
Surface area
1.8953152524282E+14
Volume
1.079207572759E+21
Height
9862434.9988052