87201991 is an odd 8-digits composite number following 87201990
and preceding 87201992 . In scientific notation, it is written as 8.7201991 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 87166984 positive integers (up to 87201991) that are relatively prime to 87201991.
87201991 has 4 divisors, whose sum is 87237000
The reverse of 87201991 is 19910278
Previous prime number is 2699
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-seven million two hundred one thousand nine hundred ninety-one
Scientific notation
8.7201991 × 10^7
Engineering notation
8.7201991 × 10^6
Prime Factorization
2699 × 32309
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87201991
Product of the distinct prime numbers
The prime factorization of 87201991 is 2699 × 32309.
Since it has a total of 2 prime factors.
9 , 6 , 18 , 45 , 771 , 124 , 5323 , 585 , 84437 , 30786 , 386666 , 517150 , 1408339 , 6538985 , 69816170 , 89558381 , 297411705 , 541478345 , 7104061023 , 5549771730
n×2
174403982
n×3
261605973
n×4
348807964
n×5
436009955
n÷2
43600995.5
n÷3
29067330.333333
n÷3
21800497.75
n÷5
17440398.2
n2
7604187234364081
n3
6.6310026677333E+23
n4
5.7823663495266E+31
n5
5.0423385837012E+39
2 √n
9338.2006296716
3 √n
443.44742115654
4 √n
96.634365676356
5 √n
38.735153396854
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
-87201990
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 87201991 can be divided by 4 positive divisors.
The sum of these divisors (counting 87201991) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100101001100011000111
3
Ternary
20002002022122101
4
Quaternary
11030221203013
5
Quinary
134310430431
6
Senary
12353012531
8
Octal
514514307
10
Decimal
87201991
12
Duodecimal
25254147
16
Hexadecimal
53298c7
20
Vigesimal
17504jb
36
Base36
1fx1hj
md5
c9be861967c6e94ade46e3c60865e889
sha1
dd0266d9657379fbd0336934c5648f4e1ff46c9f
sha256
505e7a0e42f670bcc0766bdf8c2d67c594138539f4950b663166027928732cf8
sha512
360a17dfda06beb1f26dda551da5fdcd22abfd791ef3a68a96ad538d4c121f11dd7444c94f1215af62026c4615a5b4b91931d6a353953693ec99af08eafb3b7e
ripemd-160
ee472e3716610f09e1c18e92f9166cfc038e9ad4
Diameter
174403982
Circumference
547906268.60801
Area
2.3889258751999E+16
Volume
2.7775879022514E+24
Surface area
9.5557035007998E+16
Circumference
547906268.60801
Perimeter
348807964
Area
7604187234364081
Diagonal
123322238.33814
Surface area
45625123406184486
Volume
6.6310026677333E+23
Space diagonal
151038278.93316
Perimeter
261605973
Area
3.2927096600463E+15
Altitude
75519139.466582
Surface area
3.2927096600463E+15
Volume
7.8147115873672E+22
Height
41107412.779379