201981721 is an odd 9-digits composite number following 201981720
and preceding 201981722 . In scientific notation, it is written as 2.01981721 × 10^8.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 198558244 positive integers (up to 201981721) that are relatively prime to 201981721.
201981721 has 4 divisors, whose sum is 205405200
The reverse of 201981721 is 127189102
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 31
Digital Root 4
Name
two hundred one million nine hundred eighty-one thousand seven hundred twenty-one
Scientific notation
2.01981721 × 10^8
Engineering notation
2.01981721 × 10^6
Prime Factorization
59 × 3423419
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
201981721
Product of the distinct prime numbers
The prime factorization of 201981721 is 59 × 3423419.
Since it has a total of 2 prime factors.
1 , 4 , 17 , 83 , 418 , 479 , 2619 , 9599 , 54684 , 17022 , 761728 , 399853 , 9214686 , 4931371 , 22328510 , 29621824 , 226111622 , 219026258 , 1448470547 , 7993294476
n×2
403963442
n×3
605945163
n×4
807926884
n×5
1009908605
n÷2
100990860.5
n÷3
67327240.333333
n÷3
50495430.25
n÷5
40396344.2
n2
40796615618121841
n3
8.2401706335237E+24
n4
1.6643638458928E+33
n5
3.361710739636E+41
2 √n
14212.027336028
3 √n
586.72873206286
4 √n
119.21420777755
5 √n
45.820773228603
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
-201981720
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 201981721 can be divided by 4 positive divisors.
The sum of these divisors (counting 201981721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100000010011111111100011001
3
Ternary
112002001201211111
4
Quaternary
30002133330121
5
Quinary
403201403341
6
Senary
32013100321
8
Octal
1402377431
10
Decimal
201981721
12
Duodecimal
577876a1
16
Hexadecimal
c09ff19
20
Vigesimal
3327e61
36
Base36
3c963d
md5
99ca7565ba69b4dee2eaeea502c36cc7
sha1
428812fc3e0429085ad6bdcb6468f236b52f917e
sha256
978d7a107880938f84efcdb3f41116fa17e13830b900d1643130fbd8307584e1
sha512
9bed6b2732553719ab173876029a7642edc35d7c36f93194773a56044969a7802e68d5faaabbdd1fbee7b17c69a7ff821ea33b418e9f3246bfc0927b22f9d61d
ripemd-160
3d19aa2942715787c354450b8877f31af6abf324
Diameter
403963442
Circumference
1269088581.706
Area
1.2816634791722E+17
Volume
3.4516346035473E+25
Surface area
5.1266539166887E+17
Circumference
1269088581.706
Perimeter
807926884
Area
40796615618121841
Diagonal
285645289.18966
Surface area
244779693708731046
Volume
8.2401706335237E+24
Space diagonal
349842602.9722
Perimeter
605945163
Area
1.7665452756861E+16
Altitude
174921301.4861
Surface area
1.7665452756861E+16
Volume
9.7111342218315E+23
Height
95215096.396553