201638821 is an odd 9-digits composite number following 201638820
and preceding 201638822 . In scientific notation, it is written as 2.01638821 × 10^8.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 200188044 positive integers (up to 201638821) that are relatively prime to 201638821.
201638821 has 4 divisors, whose sum is 203089600
The reverse of 201638821 is 128836102
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 31
Digital Root 4
Name
two hundred one million six hundred thirty-eight thousand eight hundred twenty-one
Scientific notation
2.01638821 × 10^8
Engineering notation
2.01638821 × 10^6
Prime Factorization
139 × 1450639
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
201638821
Product of the distinct prime numbers
The prime factorization of 201638821 is 139 × 1450639.
Since it has a total of 2 prime factors.
8 , 7 , 6 , 77 , 327 , 603 , 7406 , 5723 , 91747 , 81886 , 8116 , 504928 , 5663319 , 8464350 , 83878588 , 22979227 , 726082175 , 673719598 , 9380270356 , 9804964152
n×2
403277642
n×3
604916463
n×4
806555284
n×5
1008194105
n÷2
100819410.5
n÷3
67212940.333333
n÷3
50409705.25
n÷5
40327764.2
n2
40658214134270041
n3
8.1982743619997E+24
n4
1.6530903765882E+33
n5
3.3332719454168E+41
2 √n
14199.958485855
3 √n
586.39651843433
4 √n
119.16357868852
5 √n
45.805204865809
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
-201638820
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 201638821 can be divided by 4 positive divisors.
The sum of these divisors (counting 201638821) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100000001001100001110100101
3
Ternary
112001102022110111
4
Quaternary
30001030032211
5
Quinary
403104420241
6
Senary
32001453021
8
Octal
1401141645
10
Decimal
201638821
12
Duodecimal
57641171
16
Hexadecimal
c04c3a5
20
Vigesimal
3304h11
36
Base36
3c1tid
md5
ea9d8e13df4084b1d4f39f55fde0d248
sha1
1dca84e58fef0df7fc2693e84363b88977246474
sha256
5caef4d71a440a6c01ef5d5bf2cf2f9a7f00b7b0608a7cd1b95b53093b9b8472
sha512
5e44f7b1d3b21d63ef0d1f47859f1dd80ed0ea8ce2c0ea736595453103e0edc93946dce6b69caaded048c8f09a6337d5ba0972104a0afc9787184cd969deded8
ripemd-160
5eac0ce7207df83112b79a7b71bc1bc177315371
Diameter
403277642
Circumference
1266934077.4642
Area
1.277315468323E+17
Volume
3.4340851343696E+25
Surface area
5.1092618732921E+17
Circumference
1266934077.4642
Perimeter
806555284
Area
40658214134270041
Diagonal
285160355.35912
Surface area
243949284805620246
Volume
8.1982743619997E+24
Space diagonal
349248682.75029
Perimeter
604916463
Area
1.7605523156393E+16
Altitude
174624341.37514
Surface area
1.7605523156393E+16
Volume
9.6617589923297E+23
Height
95053451.786374