855221391 is an odd 9-digits composite number following 855221390
and preceding 855221392 . In scientific notation, it is written as 8.55221391 × 10^8.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 566648784 positive integers (up to 855221391) that are relatively prime to 855221391.
855221391 has 12 divisors, whose sum is 1242900568
The reverse of 855221391 is 193122558
Previous prime number is 163
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 36
Digital Root 9
Name
eight hundred fifty-five million two hundred twenty-one thousand three hundred ninety-one
Scientific notation
8.55221391 × 10^8
Engineering notation
8.55221391 × 10^6
Prime Factorization
3 × 3 × 163 × 582973
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
285073797
Product of the distinct prime numbers
The prime factorization of 855221391 is 3 × 3 × 163 × 582973.
Since it has a total of 4 prime factors.
9 , 8 , 40 , 9 , 618 , 126 , 41 , 1844 , 57138 , 41874 , 414214 , 480516 , 131815 , 3037440 , 19199304 , 90296458 , 440296203 , 581243986 , 9584167238 , 9319783174
n×2
1710442782
n×3
2565664173
n×4
3420885564
n×5
4276106955
n÷2
427610695.5
n÷3
285073797
n÷3
213805347.75
n÷5
171044278.2
n2
731403627623974881
n3
6.2551202779902E+26
n4
5.3495126650151E+35
n5
4.5750176625463E+44
2 √n
29244.168495616
3 √n
949.20390961729
4 √n
171.00926435611
5 √n
61.152710467274
1 , 3 , 9 , 163 , 489 , 1467 , 582973 , 1748919 , 5246757 , 95024599 , 285073797 , 855221391
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-855221390
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 855221391 can be divided by 12 positive divisors.
The sum of these divisors (counting 855221391) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
110010111110011010010010001111
3
Ternary
2012121020202012100
4
Quaternary
302332122102033
5
Quinary
3222414041031
6
Senary
220510210143
8
Octal
6276322217
10
Decimal
855221391
12
Duodecimal
1ba4b3953
16
Hexadecimal
32f9a48f
20
Vigesimal
d752d9b
36
Base36
e56d1r
md5
658fce6016083512ab597135c9d5c7d4
sha1
9574a4e57c95ab3347e9647700e10fcae1b9755f
sha256
4deb702fae7131b0fe69354a8f957fde4de11ce868c1d88696f4b6e01996283b
sha512
39011b165e321fb56b7b2287714b071b12d832bf35c46ad090a6dce08d9f868bb01a599e72afc74c3af232a3d6c57a6a8a1582042fd329db77c622900478c217
ripemd-160
7a499d141f041c6661860af5c485960d5cfa1630
Diameter
1710442782
Circumference
5373514478.3169
Area
2.2977722633524E+18
Volume
2.6201386550206E+27
Surface area
9.1910890534096E+18
Circumference
5373514478.3169
Perimeter
3420885564
Area
731403627623974881
Diagonal
1209465689.9838
Surface area
4388421765743849286
Volume
6.2551202779902E+26
Space diagonal
1481286900.9317
Perimeter
2565664173
Area
3.1670706097123E+17
Altitude
740643450.46586
Surface area
3.1670706097123E+17
Volume
7.3717299428406E+25
Height
403155229.99459