90865981 is an odd 8-digits composite number following 90865980
and preceding 90865982 . In scientific notation, it is written as 9.0865981 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 90764892 positive integers (up to 90865981) that are relatively prime to 90865981.
90865981 has 4 divisors, whose sum is 90967072
The reverse of 90865981 is 18956809
Previous prime number is 907
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
ninety million eight hundred sixty-five thousand nine hundred eighty-one
Scientific notation
9.0865981 × 10^7
Engineering notation
9.0865981 × 10^6
Prime Factorization
907 × 100183
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
90865981
Product of the distinct prime numbers
The prime factorization of 90865981 is 907 × 100183.
Since it has a total of 2 prime factors.
4 , 5 , 53 , 5 , 313 , 993 , 29 , 8121 , 44062 , 7113 , 511087 , 33094 , 2705792 , 1228918 , 19344572 , 1736840 , 899987871 , 221349945 , 1989014614 , 5497616772
n×2
181731962
n×3
272597943
n×4
363463924
n×5
454329905
n÷2
45432990.5
n÷3
30288660.333333
n÷3
22716495.25
n÷5
18173196.2
n2
8256626503092361
n3
7.5024646695409E+23
n4
6.8171881211567E+31
n5
6.1945048629045E+39
2 √n
9532.364921676
3 √n
449.57322665815
4 √n
97.63383082557
5 √n
39.055325699469
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
-90865980
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 90865981 can be divided by 4 positive divisors.
The sum of these divisors (counting 90865981) is 1, the average is 0.25.
Base
System
Value
2
Binary
101011010101000000100111101
3
Ternary
20022222110200201
4
Quaternary
11122220010331
5
Quinary
141230202411
6
Senary
13003323501
8
Octal
532500475
10
Decimal
90865981
12
Duodecimal
26520591
16
Hexadecimal
56a813d
20
Vigesimal
187i4j1
36
Base36
1i3kn1
md5
f79e848eafd2119010acb04a0e12f97a
sha1
832e1b2c4e77cf3d4e32aaa08a936512f753bbe3
sha256
ddc55fb00ee63c1c0a6187a386dd5e9c578558bcb0c5eee3459b24b1156a275f
sha512
258a67425c7dcf9b8571de06b6355428752e5ade0c0ae1a4b3daa787f17dc6eb599a14db28337d63957352c6a5a16bc4c8754fac51a5078c929b6664c6ea08ee
ripemd-160
5b1b323b727b076b8ac444bdb3c0fc884ad335b6
Diameter
181731962
Circumference
570927796.74166
Area
2.593895716555E+16
Volume
3.1426250519529E+24
Surface area
1.037558286622E+17
Circumference
570927796.74166
Perimeter
363463924
Area
8256626503092361
Diagonal
128503902.68854
Surface area
49539759018554166
Volume
7.5024646695409E+23
Space diagonal
157384495.77159
Perimeter
272597943
Area
3.5752241506189E+15
Altitude
78692247.885794
Surface area
3.5752241506189E+15
Volume
8.8417394057414E+22
Height
42834634.229512