20921143 is an odd 8-digits composite number following 20921142
and preceding 20921144 . In scientific notation, it is written as 2.0921143 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 20634480 positive integers (up to 20921143) that are relatively prime to 20921143.
20921143 has 4 divisors, whose sum is 21207808
The reverse of 20921143 is 34112902
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million nine hundred twenty-one thousand one hundred forty-three
Scientific notation
2.0921143 × 10^7
Engineering notation
2.0921143 × 10^6
Prime Factorization
73 × 286591
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921143
Product of the distinct prime numbers
The prime factorization of 20921143 is 73 × 286591.
Since it has a total of 2 prime factors.
5 , 10 , 75 , 1 , 780 , 514 , 3721 , 7600 , 11977 , 44806 , 291933 , 39863 , 4457697 , 4642894 , 28145345 , 71488488 , 149624016 , 52645700 , 8205545377 , 426581791
n×2
41842286
n×3
62763429
n×4
83684572
n×5
104605715
n÷2
10460571.5
n÷3
6973714.3333333
n÷3
5230285.75
n÷5
4184228.6
n2
437694224426449
n3
9.1570634594998E+21
n4
1.9157623409627E+29
n5
4.0079937889296E+36
2 √n
4573.9635984559
3 √n
275.54665037872
4 √n
67.631084557738
5 √n
29.115019250462
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
-20921142
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 20921143 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921143) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011101100110111
3
Ternary
1110100220102011
4
Quaternary
1033303230313
5
Quinary
20323434033
6
Senary
2024225051
8
Octal
117635467
10
Decimal
20921143
12
Duodecimal
700b187
16
Hexadecimal
13f3b37
20
Vigesimal
6af2h3
36
Base36
cgeuv
md5
ec1715a1cb9d3e15ccdf24c467d6a40c
sha1
93bb64256416fe1692bc0d2ebd2a54f63e576d0e
sha256
69ff46aa956a7d917e6bee0e974ceaece280fa429dd4b48a5d98ce0fef610b19
sha512
5b992d6709c67d3520003a8396851bd2631ef873d1499ac108781c25ecde0e7583af3048c3f847e92e0ee54d0a2f0da0715d91d78a33e734039854184115e1d9
ripemd-160
7c645dc45e4738574ab4f5a985f834d8d14a6673
Diameter
41842286
Circumference
131451418.307
Area
1.3750569599768E+15
Volume
3.835701772376E+22
Surface area
5.5002278399073E+15
Circumference
131451418.307
Perimeter
83684572
Area
437694224426449
Diagonal
29586964.170947
Surface area
2626165346558694
Volume
9.1570634594998E+21
Space diagonal
36236482.628414
Perimeter
62763429
Area
1.8952715872152E+14
Altitude
18118241.314207
Surface area
1.8952715872152E+14
Volume
1.0791702779946E+21
Height
9862321.3903156