87091881 is an odd 8-digits composite number following 87091880
and preceding 87091882 . In scientific notation, it is written as 8.7091881 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 58061252 positive integers (up to 87091881) that are relatively prime to 87091881.
87091881 has 4 divisors, whose sum is 116122512
The reverse of 87091881 is 18819078
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-seven million ninety-one thousand eight hundred eighty-one
Scientific notation
8.7091881 × 10^7
Engineering notation
8.7091881 × 10^6
Prime Factorization
3 × 29030627
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87091881
Product of the distinct prime numbers
The prime factorization of 87091881 is 3 × 29030627.
Since it has a total of 2 prime factors.
8 , 3 , 22 , 93 , 422 , 271 , 2554 , 649 , 57537 , 76759 , 769233 , 499878 , 3309938 , 5784654 , 65049495 , 60457316 , 451746895 , 365077313 , 1957129793 , 3799119888
n×2
174183762
n×3
261275643
n×4
348367524
n×5
435459405
n÷2
43545940.5
n÷3
29030627
n÷3
21772970.25
n÷5
17418376.2
n2
7584995736118161
n3
6.6059154603551E+23
n4
5.7532160316931E+31
n5
5.010584059995E+39
2 √n
9332.303091949
3 √n
443.26069544411
4 √n
96.603846155052
5 √n
38.725366272599
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
-87091880
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 87091881 can be divided by 4 positive divisors.
The sum of these divisors (counting 87091881) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100001110101010101001
3
Ternary
20001212201121020
4
Quaternary
11030032222221
5
Quinary
134243420011
6
Senary
12350403053
8
Octal
514165251
10
Decimal
87091881
12
Duodecimal
25200489
16
Hexadecimal
530eaa9
20
Vigesimal
17469e1
36
Base36
1fuoix
md5
db172ce1086781effec7371c241a45c7
sha1
755c3e4129cc35c8f5732436050eb9c6c1118731
sha256
8cdcd7236e70351d0b22689b507e9a0107ff5bbe7195c288b6a9d260200be9b4
sha512
15d87357114c2033e7a8dc9910d7b8233957282432e16ff26d134676845db64335893b8e69ad3b367d9593ec2c3b7f15076812aa77a40ced5dfa8d8f409e7b1a
ripemd-160
5fc48660f529d1417b32335f1bc2b40ec21ca2a9
Diameter
174183762
Circumference
547214427.07383
Area
2.3828966882099E+16
Volume
2.7670793973982E+24
Surface area
9.5315867528395E+16
Circumference
547214427.07383
Perimeter
348367524
Area
7584995736118161
Diagonal
123166519.28278
Surface area
45509974416708966
Volume
6.6059154603551E+23
Space diagonal
150847562.81874
Perimeter
261275643
Area
3.2843994975375E+15
Altitude
75423781.409371
Surface area
3.2843994975375E+15
Volume
7.7851460299369E+22
Height
41055506.427595