71305987 is an odd 8-digits composite number following 71305986
and preceding 71305988 . In scientific notation, it is written as 7.1305987 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 71288640 positive integers (up to 71305987) that are relatively prime to 71305987.
71305987 has 4 divisors, whose sum is 71323336
The reverse of 71305987 is 78950317
Previous prime number is 6691
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
seventy-one million three hundred five thousand nine hundred eighty-seven
Scientific notation
7.1305987 × 10^7
Engineering notation
7.1305987 × 10^6
Prime Factorization
6691 × 10657
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71305987
Product of the distinct prime numbers
The prime factorization of 71305987 is 6691 × 10657.
Since it has a total of 2 prime factors.
4 , 9 , 9 , 61 , 410 , 819 , 8800 , 2094 , 64796 , 21305 , 755557 , 790466 , 6199221 , 200473 , 8239761 , 85969149 , 373177700 , 865221602 , 154612515 , 992418248
n×2
142611974
n×3
213917961
n×4
285223948
n×5
356529935
n÷2
35652993.5
n÷3
23768662.333333
n÷3
17826496.75
n÷5
14261197.4
n2
5084543782044169
n3
3.6255841282337E+23
n4
2.5852585471524E+31
n5
1.8434441235489E+39
2 √n
8444.2872404958
3 √n
414.67577521179
4 √n
91.892802985303
5 √n
37.207046679216
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
-71305986
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 71305987 can be divided by 4 positive divisors.
The sum of these divisors (counting 71305987) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010000000000101100000011
3
Ternary
11222011201102111
4
Quaternary
10100000230003
5
Quinary
121223242422
6
Senary
11024200151
8
Octal
420005403
10
Decimal
71305987
12
Duodecimal
1ba69057
16
Hexadecimal
4400b03
20
Vigesimal
125d4j7
36
Base36
16gc1v
md5
97aa8a488687f8d4647d0fcc53d9b689
sha1
e648a9a7dcd2e949f3ddb08dede7c257ba99e430
sha256
ed79c63694ebc76c148bf70685dd835092f7efa699bd9d71a6aba56eac0f6fce
sha512
07ef8f6a6d07125ec961df82cf7204ecbfa92ded4eae558d1f78cb3a73fab998f755ecd9bfa6b3c235c479ae563df04062bcb3a6bfce992896858809fad0c94c
ripemd-160
ae6337dc0fc7dfe95f71a45667de6c5c5dfe5517
Diameter
142611974
Circumference
448028729.83234
Area
1.5973565392526E+16
Volume
1.5186811282974E+24
Surface area
6.3894261570102E+16
Circumference
448028729.83234
Perimeter
285223948
Area
5084543782044169
Diagonal
100841893.8938
Surface area
30507262692265014
Volume
3.6255841282337E+23
Space diagonal
123505592.36785
Perimeter
213917961
Area
2.2016720409522E+15
Altitude
61752796.183923
Surface area
2.2016720409522E+15
Volume
4.272791871394E+22
Height
33613964.631267