81887675 is an odd 8-digits composite number following 81887674
and preceding 81887676 . In scientific notation, it is written as 8.1887675 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 65510120 positive integers (up to 81887675) that are relatively prime to 81887675.
81887675 has 4 divisors, whose sum is 85163208
The reverse of 81887675 is 57678818
Previous prime number is 25
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
eighty-one million eight hundred eighty-seven thousand six hundred seventy-five
Scientific notation
8.1887675 × 10^7
Engineering notation
8.1887675 × 10^6
Prime Factorization
25 × 3275507
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81887675
Product of the distinct prime numbers
The prime factorization of 81887675 is 25 × 3275507.
Since it has a total of 2 prime factors.
10 , 9 , 51 , 8 , 423 , 275 , 9055 , 2389 , 18805 , 23324 , 867993 , 163590 , 9666632 , 5761544 , 54159107 , 28747066 , 792712306 , 679351419 , 3699249539 , 9502906710
n×2
163775350
n×3
245663025
n×4
327550700
n×5
409438375
n÷2
40943837.5
n÷3
27295891.666667
n÷3
20471918.75
n÷5
16377535
n2
6705591316905625
n3
5.4910528244159E+23
n4
4.496495490936E+31
n5
3.6820756140073E+39
2 √n
9049.180902159
3 √n
434.2496864332
4 √n
95.127182772113
5 √n
38.25108056044
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
-81887674
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 81887675 can be divided by 4 positive divisors.
The sum of these divisors (counting 81887675) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111000011000000110111011
3
Ternary
12201002022202212
4
Quaternary
10320120012323
5
Quinary
131430401200
6
Senary
12043045335
8
Octal
470300673
10
Decimal
81887675
12
Duodecimal
2351084b
16
Hexadecimal
4e181bb
20
Vigesimal
15bfj3f
36
Base36
1cr4xn
md5
3cd417d00ee4c668b596a2b6f9a9cbdc
sha1
7d719f6ef8fd09104485885fd271b3bbc74637df
sha256
ab09010d49f6b296770da9f7cdb441c507fc74c385e8a22a48f1b08d8aa59024
sha512
011ceb625ddf24ad3087ddd085d602567705e626f44905ab9b436cb8d243b28fb03c38705475b4670afc9cbfabba62111c16975e17b8050f1f2cd85160440d90
ripemd-160
29871d066a4ae8f3f90cc44ce2ca746c3debe5d8
Diameter
163775350
Circumference
514515436.3991
Area
2.1066236419166E+16
Volume
2.3000868284878E+24
Surface area
8.4264945676665E+16
Circumference
514515436.3991
Perimeter
327550700
Area
6705591316905625
Diagonal
115806660.5762
Surface area
40233547901433750
Volume
5.4910528244159E+23
Space diagonal
141833613.61369
Perimeter
245663025
Area
2.9036062139183E+15
Altitude
70916806.806844
Surface area
2.9036062139183E+15
Volume
6.47126781333E+22
Height
38602220.192067