20984857 is an odd 8-digits composite number following 20984856
and preceding 20984858 . In scientific notation, it is written as 2.0984857 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 20966580 positive integers (up to 20984857) that are relatively prime to 20984857.
20984857 has 4 divisors, whose sum is 21003136
The reverse of 20984857 is 75848902
Previous prime number is 1231
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million nine hundred eighty-four thousand eight hundred fifty-seven
Scientific notation
2.0984857 × 10^7
Engineering notation
2.0984857 × 10^6
Prime Factorization
1231 × 17047
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20984857
Product of the distinct prime numbers
The prime factorization of 20984857 is 1231 × 17047.
Since it has a total of 2 prime factors.
3 , 4 , 88 , 100 , 61 , 771 , 3774 , 3319 , 3631 , 43334 , 782270 , 370707 , 5897498 , 1675639 , 35236980 , 79069307 , 702806457 , 232791927 , 2784704465 , 6573341291
n×2
41969714
n×3
62954571
n×4
83939428
n×5
104924285
n÷2
10492428.5
n÷3
6994952.3333333
n÷3
5246214.25
n÷5
4196971.4
n2
440364223310449
n3
9.2409802540858E+21
n4
1.9392064917181E+29
n5
4.0693970922177E+36
2 √n
4580.9231602375
3 √n
275.82608678907
4 √n
67.682517389925
5 √n
29.132731272235
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20984856
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20984857 can be divided by 4 positive divisors.
The sum of these divisors (counting 20984857) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000011010000011001
3
Ternary
1110111010210221
4
Quaternary
1100003100121
5
Quinary
20333003412
6
Senary
2025440041
8
Octal
120032031
10
Decimal
20984857
12
Duodecimal
7040021
16
Hexadecimal
1403419
20
Vigesimal
6b322h
36
Base36
chs0p
md5
8ed95ab35902058c3125a3979564ad39
sha1
1e07530e9b0fd8298290480c38293af748154f84
sha256
a44a2c3c7cc9e663ae6ec7d2c1d4194b1d1d50b7ba56f013b1f68b2193dd6860
sha512
1d2b2b0618a5a807059783e8447f9272c0c74f4c9ffddad0d2cc692f3ff54c49471f27f02e331997a02ec727b1383ccf799f8a1110fc5cd6f700b584c05e2211
ripemd-160
2f1806eba8928b66f99dbc542e0b07bac7150ada
Diameter
41969714
Circumference
131851745.17566
Area
1.3834450088559E+15
Volume
3.8708527570939E+22
Surface area
5.5337800354235E+15
Circumference
131851745.17566
Perimeter
83939428
Area
440364223310449
Diagonal
29677069.37386
Surface area
2642185339862694
Volume
9.2409802540858E+21
Space diagonal
36346838.513567
Perimeter
62954571
Area
1.9068330215233E+14
Altitude
18173419.256784
Surface area
1.9068330215233E+14
Volume
1.0890599670792E+21
Height
9892356.4579533