221265821 is an odd 9-digits composite number following 221265820
and preceding 221265822 . In scientific notation, it is written as 2.21265821 × 10^8.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 189656376 positive integers (up to 221265821) that are relatively prime to 221265821.
221265821 has 4 divisors, whose sum is 225781500
The reverse of 221265821 is 128562122
Previous prime number is 49
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 29
Digital Root 2
Name
two hundred twenty-one million two hundred sixty-five thousand eight hundred twenty-one
Scientific notation
2.21265821 × 10^8
Engineering notation
2.21265821 × 10^6
Prime Factorization
49 × 4515629
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
221265821
Product of the distinct prime numbers
The prime factorization of 221265821 is 49 × 4515629.
Since it has a total of 2 prime factors.
3 , 1 , 30 , 18 , 698 , 559 , 4461 , 4963 , 27495 , 25789 , 943075 , 8596 , 1451507 , 7963367 , 96944489 , 90497179 , 574247674 , 74263801 , 5625225871 , 4111822616
n×2
442531642
n×3
663797463
n×4
885063284
n×5
1106329105
n÷2
110632910.5
n÷3
73755273.666667
n÷3
55316455.25
n÷5
44253164.2
n2
48958563542804041
n3
1.0832856757279E+25
n4
2.3969409441748E+33
n5
5.3036110590135E+41
2 √n
14875.006588234
3 √n
604.83666651558
4 √n
121.96313618563
5 √n
46.664097055469
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
-221265820
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 221265821 can be divided by 4 positive divisors.
The sum of these divisors (counting 221265821) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101001100000011111110011101
3
Ternary
120102100110122102
4
Quaternary
31030003332131
5
Quinary
423121001241
6
Senary
33542254445
8
Octal
1514037635
10
Decimal
221265821
12
Duodecimal
62127425
16
Hexadecimal
d303f9d
20
Vigesimal
392i4b1
36
Base36
3nqhst
md5
8a6f86c993f57d62427a49fa179e1782
sha1
7ad6b3242206f9a2c67bb6a054f7bfd898a30e77
sha256
d1035f1a1c45d995a9d8da00103e114ff565fead581e52b8cc0e000461e88fb4
sha512
5243079c8c394bbaf3dc3594154fd740c90c1c39f5ee8c745dce80b59ec8fd595486e228d69c99c43951759c57a0942edf00633731a367024153661d8633c956
ripemd-160
b85738595bed695c9bf010233c113a6e6fe73c56
Diameter
442531642
Circumference
1390254155.4882
Area
1.5380786355638E+17
Volume
4.5376564274745E+25
Surface area
6.1523145422553E+17
Circumference
1390254155.4882
Perimeter
885063284
Area
48958563542804041
Diagonal
312917124.94782
Surface area
293751381256824246
Volume
1.0832856757279E+25
Space diagonal
383243643.95044
Perimeter
663797463
Area
2.1199679880431E+16
Altitude
191621821.97522
Surface area
2.1199679880431E+16
Volume
1.2766644121158E+24
Height
104305708.31594