85431381 is an odd 8-digits composite number following 85431380
and preceding 85431382 . In scientific notation, it is written as 8.5431381 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 47242800 positive integers (up to 85431381) that are relatively prime to 85431381.
85431381 has 16 divisors, whose sum is 134381568
The reverse of 85431381 is 18313458
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-five million four hundred thirty-one thousand three hundred eighty-one
Scientific notation
8.5431381 × 10^7
Engineering notation
8.5431381 × 10^6
Prime Factorization
3 × 7 × 31 × 131231
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
85431381
Product of the distinct prime numbers
The prime factorization of 85431381 is 3 × 7 × 31 × 131231.
Since it has a total of 4 prime factors.
1 , 7 , 26 , 25 , 720 , 647 , 8944 , 5932 , 15325 , 98105 , 497397 , 53797 , 2259457 , 6703780 , 24318470 , 14359636 , 941912839 , 567968742 , 6684279318 , 2551703701
n×2
170862762
n×3
256294143
n×4
341725524
n×5
427156905
n÷2
42715690.5
n÷3
28477127
n÷3
21357845.25
n÷5
17086276.2
n2
7298520859567161
n3
6.2352271629013E+23
n4
5.3268406737537E+31
n5
4.5507935512575E+39
2 √n
9242.9097691149
3 √n
440.42551982499
4 √n
96.140052886999
5 √n
38.576558916935
1 , 3 , 7 , 21 , 31 , 93 , 217 , 651 , 131231 , 393693 , 918617 , 2755851 , 4068161 , 12204483 , 28477127 , 85431381
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-85431380
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 85431381 can be divided by 16 positive divisors.
The sum of these divisors (counting 85431381) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101000101111001010001010101
3
Ternary
12221202100211020
4
Quaternary
11011321101111
5
Quinary
133332301011
6
Senary
12251031353
8
Octal
505712125
10
Decimal
85431381
12
Duodecimal
2473b559
16
Hexadecimal
5179455
20
Vigesimal
16dii91
36
Base36
1ev39x
md5
a93297801ae44d0c64d715e28bf039bb
sha1
a92617278d6db6f1372c8aadf1b74e270f69bc56
sha256
ea140a0603feb3c1bbbea97d80e6dcdec0d88c61a59d76736d36b826b0a1c3c1
sha512
d9f4aee93370395fad82b0afaae800f6caaf28dd79a08e024ad59fbb077a4180293d9d0767b18fb2396928871a67f7af740e0a38beaad4a9c8bb61d7efabe070
ripemd-160
ab08cef4da1282eaf47057b87b02cfda94619815
Diameter
170862762
Circumference
536781197.87126
Area
2.2928979514488E+16
Volume
2.6118058464579E+24
Surface area
9.1715918057952E+16
Circumference
536781197.87126
Perimeter
341725524
Area
7298520859567161
Diagonal
120818217.66246
Surface area
43791125157402966
Volume
6.2352271629013E+23
Space diagonal
147971492.45277
Perimeter
256294143
Area
3.1603522372179E+15
Altitude
73985746.226387
Surface area
3.1603522372179E+15
Volume
7.3482856818768E+22
Height
40272739.220821