85440991 is an odd 8-digits composite number following 85440990
and preceding 85440992 . In scientific notation, it is written as 8.5440991 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 82684800 positive integers (up to 85440991) that are relatively prime to 85440991.
85440991 has 4 divisors, whose sum is 88197184
The reverse of 85440991 is 19904458
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-five million four hundred forty thousand nine hundred ninety-one
Scientific notation
8.5440991 × 10^7
Engineering notation
8.5440991 × 10^6
Prime Factorization
31 × 2756161
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
85440991
Product of the distinct prime numbers
The prime factorization of 85440991 is 31 × 2756161.
Since it has a total of 2 prime factors.
2 , 1 , 65 , 91 , 288 , 899 , 8247 , 4961 , 13044 , 51844 , 771505 , 670257 , 2556996 , 8583636 , 51506898 , 10997898 , 584687359 , 311331433 , 3660971928 , 8938634153
n×2
170881982
n×3
256322973
n×4
341763964
n×5
427204955
n÷2
42720495.5
n÷3
28480330.333333
n÷3
21360247.75
n÷5
17088198.2
n2
7300162943062081
n3
6.237331563167E+23
n4
5.3292378995257E+31
n5
4.5533536741023E+39
2 √n
9243.4296124328
3 √n
440.44203339219
4 √n
96.142756422067
5 √n
38.577426757411
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
-85440990
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 85440991 can be divided by 4 positive divisors.
The sum of these divisors (counting 85440991) is 1, the average is 0.25.
Base
System
Value
2
Binary
101000101111011100111011111
3
Ternary
12221202212000011
4
Quaternary
11011323213133
5
Quinary
133333102431
6
Senary
12251144051
8
Octal
505734737
10
Decimal
85440991
12
Duodecimal
24745027
16
Hexadecimal
517b9df
20
Vigesimal
16e029b
36
Base36
1evaov
md5
6b45d7ecd3696d7c05bfaccf9b9cd5a0
sha1
d04348f072f32b8df9a68368d2711134bbb888ae
sha256
0a06c9a017e556edd8234e13044e173ea399dd7e8332a4c885cedcda1954e0e6
sha512
c7c95ffdf6206103a9bc4d17094cd0b75e9a645cb15bbf01533761f24dca481cad9602cf9b14040d6cd21bbf59eab2c45e72f0865b8b49ca4b5216764475d453
ripemd-160
03710a7cfe6f6af1cd85dd876fd56e3ffb8df472
Diameter
170881982
Circumference
536841579.28206
Area
2.2934138271932E+16
Volume
2.6126873355799E+24
Surface area
9.1736553087729E+16
Circumference
536841579.28206
Perimeter
341763964
Area
7300162943062081
Diagonal
120831808.2548
Surface area
43800977658372486
Volume
6.237331563167E+23
Space diagonal
147988137.46104
Perimeter
256322973
Area
3.1610632802288E+15
Altitude
73994068.730518
Surface area
3.1610632802288E+15
Volume
7.3507657413738E+22
Height
40277269.418266