87540981 is an odd 8-digits composite number following 87540980
and preceding 87540982 . In scientific notation, it is written as 8.7540981 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 53055120 positive integers (up to 87540981) that are relatively prime to 87540981.
87540981 has 8 divisors, whose sum is 127332384
The reverse of 87540981 is 18904578
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-seven million five hundred forty thousand nine hundred eighty-one
Scientific notation
8.7540981 × 10^7
Engineering notation
8.7540981 × 10^6
Prime Factorization
3 × 11 × 2652757
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
87540981
Product of the distinct prime numbers
The prime factorization of 87540981 is 3 × 11 × 2652757.
Since it has a total of 3 prime factors.
6 , 8 , 67 , 28 , 845 , 218 , 5634 , 7367 , 67954 , 56527 , 13620 , 199611 , 3479911 , 7321507 , 74270638 , 44220239 , 791762540 , 691335378 , 9564393497 , 7648239089
n×2
175081962
n×3
262622943
n×4
350163924
n×5
437704905
n÷2
43770490.5
n÷3
29180327
n÷3
21885245.25
n÷5
17508196.2
n2
7663423354442361
n3
6.7086359826619E+23
n4
5.8728057509413E+31
n5
5.1411117665984E+39
2 √n
9356.3337371002
3 √n
444.02129899449
4 √n
96.728143459389
5 √n
38.76522257078
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
-87540980
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 87540981 can be divided by 8 positive divisors.
The sum of these divisors (counting 87540981) is 1, the average is 0.125.
Base
System
Value
2
Binary
101001101111100010011110101
3
Ternary
20002201112122120
4
Quaternary
11031330103311
5
Quinary
134402302411
6
Senary
12404150153
8
Octal
515742365
10
Decimal
87540981
12
Duodecimal
25398359
16
Hexadecimal
537c4f5
20
Vigesimal
1772c91
36
Base36
1g4b1x
md5
8d4cc74df35d00e23dabb4bd89adac3d
sha1
e11d27be004accdcf340613807fc51ce58b0eb54
sha256
339326aa7c70591b0ee46f94b8c7c9516ad5d02e7a436770862423666870b72e
sha512
2f0fbf1c960b9eecfa954f54eff31499bc44a985abe2c79621811cc3286f4bfb68f78d0164ce516859f6ff638e4d1c0f8a77b409433974c33d3cf08617edf7f5
ripemd-160
7cba77aaa5a5d01d7e4e08e58d147116fb6861a2
Diameter
175081962
Circumference
550036205.59529
Area
2.4075354511665E+16
Volume
2.8101068691652E+24
Surface area
9.6301418046658E+16
Circumference
550036205.59529
Perimeter
350163924
Area
7663423354442361
Diagonal
123801642.59365
Surface area
45980540126654166
Volume
6.7086359826619E+23
Space diagonal
151625426.83642
Perimeter
262622943
Area
3.318359652451E+15
Altitude
75812713.418211
Surface area
3.318359652451E+15
Volume
7.9062033264206E+22
Height
41267214.197882