71320987 is an odd 8-digits composite number following 71320986
and preceding 71320988 . In scientific notation, it is written as 7.1320987 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 66774240 positive integers (up to 71320987) that are relatively prime to 71320987.
71320987 has 16 divisors, whose sum is 76059648
The reverse of 71320987 is 78902317
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
seventy-one million three hundred twenty thousand nine hundred eighty-seven
Scientific notation
7.1320987 × 10^7
Engineering notation
7.1320987 × 10^6
Prime Factorization
31 × 83 × 53 × 523
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
71320987
Product of the distinct prime numbers
The prime factorization of 71320987 is 31 × 83 × 53 × 523.
Since it has a total of 4 prime factors.
8 , 8 , 60 , 28 , 436 , 144 , 3547 , 4661 , 35124 , 41449 , 304739 , 64931 , 1423890 , 236629 , 73841914 , 90634247 , 447701396 , 522892364 , 5102288286 , 1176734592
n×2
142641974
n×3
213962961
n×4
285283948
n×5
356604935
n÷2
35660493.5
n÷3
23773662.333333
n÷3
17830246.75
n÷5
14264197.4
n2
5086683186654169
n3
3.6278726542848E+23
n4
2.587434584139E+31
n5
1.8453838833873E+39
2 √n
8445.1753682206
3 √n
414.70485037916
4 √n
91.897635270014
5 √n
37.208611929957
1 , 31 , 53 , 83 , 523 , 1643 , 2573 , 4399 , 16213 , 27719 , 43409 , 136369 , 859289 , 1345679 , 2300677 , 71320987
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71320986
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71320987 can be divided by 16 positive divisors.
The sum of these divisors (counting 71320987) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010000000100010110011011
3
Ternary
11222012111000001
4
Quaternary
10100010112123
5
Quinary
121224232422
6
Senary
11024353431
8
Octal
420042633
10
Decimal
71320987
12
Duodecimal
1ba75877
16
Hexadecimal
440459b
20
Vigesimal
125f297
36
Base36
16gnmj
md5
3ecd73eec61886184861de0dddca2662
sha1
40d049926270159ddb25413ac73d655c91b062d0
sha256
94ad47a49ec5685cc2afbd26f5bf72fdb859f434442768a79457af50ed9f0d50
sha512
60248fcdd2503995f8775e9af65a9afca150e2075909ca28463349b69de777ee682363a5e96b6acd8cfe8712d7fcf84ca21ccc90bb7df3a61f6992fdb4384d88
ripemd-160
193fc14e91f9d366988ba72a06dacec9f5960817
Diameter
142641974
Circumference
448122977.61195
Area
1.5980286530331E+16
Volume
1.5196397438481E+24
Surface area
6.3921146121326E+16
Circumference
448122977.61195
Perimeter
285283948
Area
5086683186654169
Diagonal
100863107.09724
Surface area
30520099119925014
Volume
3.6278726542848E+23
Space diagonal
123531573.12996
Perimeter
213962961
Area
2.2025984303228E+15
Altitude
61765786.56498
Surface area
2.2025984303228E+15
Volume
4.27548892521E+22
Height
33621035.699078