85541981 is an odd 8-digits composite number following 85541980
and preceding 85541982 . In scientific notation, it is written as 8.5541981 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 73191168 positive integers (up to 85541981) that are relatively prime to 85541981.
85541981 has 8 divisors, whose sum is 97936320
The reverse of 85541981 is 18914558
Previous prime number is 21179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-five million five hundred forty-one thousand nine hundred eighty-one
Scientific notation
8.5541981 × 10^7
Engineering notation
8.5541981 × 10^6
Prime Factorization
7 × 21179 × 577
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
85541981
Product of the distinct prime numbers
The prime factorization of 85541981 is 7 × 21179 × 577.
Since it has a total of 3 prime factors.
7 , 9 , 68 , 37 , 958 , 66 , 2365 , 8432 , 29692 , 37687 , 869323 , 321612 , 5625974 , 2059642 , 36879579 , 80262525 , 900884286 , 648303252 , 3927716179 , 2148689975
n×2
171083962
n×3
256625943
n×4
342167924
n×5
427709905
n÷2
42770990.5
n÷3
28513993.666667
n÷3
21385495.25
n÷5
17108396.2
n2
7317430513404361
n3
6.2594750194646E+23
n4
5.3544789318501E+31
n5
4.5803273505322E+39
2 √n
9248.8907983606
3 √n
440.61549707721
4 √n
96.171153670738
5 √n
38.586542039462
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-85541980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 85541981 can be divided by 8 positive divisors.
The sum of these divisors (counting 85541981) is 1, the average is 0.125.
Base
System
Value
2
Binary
101000110010100010001011101
3
Ternary
12221221222112112
4
Quaternary
11012110101131
5
Quinary
133344320411
6
Senary
12253243405
8
Octal
506242135
10
Decimal
85541981
12
Duodecimal
24793565
16
Hexadecimal
519445d
20
Vigesimal
16ecej1
36
Base36
1exgm5
md5
81be0a853d6d08f225aad584ab3cc99a
sha1
25fb95fbfad8957d45a676ef868a2745dfdaad7d
sha256
f55720c745b4cc34cc6982a36e1a7d8301077b8adf63e7390e0d057f7bf73786
sha512
603adc337ff4b9d47078d890addfab4cad841826dff3cf830e1d863168b809a3347f06fd8f626a0c501ea7ad4e2e2f97e80526623923e4f2eadf39e2a6aa0ee9
ripemd-160
6728964b87231bddf3cd8ae62ae454bd2f1f2ca9
Diameter
171083962
Circumference
537476118.16624
Area
2.2988385944065E+16
Volume
2.6219627648638E+24
Surface area
9.195354377626E+16
Circumference
537476118.16624
Perimeter
342167924
Area
7317430513404361
Diagonal
120974629.68246
Surface area
43904583080426166
Volume
6.2594750194646E+23
Space diagonal
148163057.27209
Perimeter
256625943
Area
3.1685403575178E+15
Altitude
74081528.636046
Surface area
3.1685403575178E+15
Volume
7.3768620548853E+22
Height
40324876.560821