87081947 is an odd 8-digits composite number following 87081946
and preceding 87081948 . In scientific notation, it is written as 8.7081947 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 87036960 positive integers (up to 87081947) that are relatively prime to 87081947.
87081947 has 4 divisors, whose sum is 87126936
The reverse of 87081947 is 74918078
Previous prime number is 2027
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighty-seven million eighty-one thousand nine hundred forty-seven
Scientific notation
8.7081947 × 10^7
Engineering notation
8.7081947 × 10^6
Prime Factorization
2027 × 42961
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87081947
Product of the distinct prime numbers
The prime factorization of 87081947 is 2027 × 42961.
Since it has a total of 2 prime factors.
6 , 7 , 72 , 7 , 271 , 855 , 7081 , 8325 , 93517 , 34666 , 970881 , 852116 , 804579 , 9972213 , 85965716 , 48006118 , 894522244 , 1668831 , 7156180675 , 3170298018
n×2
174163894
n×3
261245841
n×4
348327788
n×5
435409735
n÷2
43540973.5
n÷3
29027315.666667
n÷3
21770486.75
n÷5
17416389.4
n2
7583265493310809
n3
6.6036552377542E+23
n4
5.7505915542038E+31
n5
5.0077270894183E+39
2 √n
9331.7708394495
3 √n
443.2438415226
4 √n
96.601091295334
5 √n
38.724482802551
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
-87081946
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 87081947 can be divided by 4 positive divisors.
The sum of these divisors (counting 87081947) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100001100001111011011
3
Ternary
20001212012222022
4
Quaternary
11030030033123
5
Quinary
134243110242
6
Senary
12350245055
8
Octal
514141733
10
Decimal
87081947
12
Duodecimal
251b678b
16
Hexadecimal
530c3db
20
Vigesimal
17454h7
36
Base36
1fuguz
md5
2c3bcbf7083519caee77937bfaa31a64
sha1
3aba7a52635442e181dab85e720d626a55a0042b
sha256
937baef75c47410e5b41ffc45b12dfe53643afa5349cb3f6fa7bcd988a4ed290
sha512
094a60610b2397ff1eee54070c439b3a568f2add16f8f18bb7d17a54a42b705b08fc59bc4d98d5ef14f92a68c3dceaadd8ae7b20cb73166bf8a8999e6893449c
ripemd-160
6e4977ca06254e0e1163ca338f171bb15b5dfe3f
Diameter
174163894
Circumference
547152009.91099
Area
2.3823531164006E+16
Volume
2.7661326375691E+24
Surface area
9.5294124656025E+16
Circumference
547152009.91099
Perimeter
348327788
Area
7583265493310809
Diagonal
123152470.48526
Surface area
45499592959864854
Volume
6.6036552377542E+23
Space diagonal
150830356.62602
Perimeter
261245841
Area
3.2836502804245E+15
Altitude
75415178.31301
Surface area
3.2836502804245E+15
Volume
7.7824823320568E+22
Height
41050823.495085