87128247 is an odd 8-digits composite number following 87128246
and preceding 87128248 . In scientific notation, it is written as 8.7128247 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 54668672 positive integers (up to 87128247) that are relatively prime to 87128247.
87128247 has 4 divisors, whose sum is 88836696
The reverse of 87128247 is 74282178
Previous prime number is 51
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-seven million one hundred twenty-eight thousand two hundred forty-seven
Scientific notation
8.7128247 × 10^7
Engineering notation
8.7128247 × 10^6
Prime Factorization
51 × 1708397
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87128247
Product of the distinct prime numbers
The prime factorization of 87128247 is 51 × 1708397.
Since it has a total of 2 prime factors.
5 , 5 , 55 , 58 , 65 , 751 , 1190 , 9593 , 90964 , 90144 , 864862 , 423917 , 8008717 , 3594642 , 94623019 , 45602040 , 70940598 , 520254674 , 9568346266 , 2211781351
n×2
174256494
n×3
261384741
n×4
348512988
n×5
435641235
n÷2
43564123.5
n÷3
29042749
n÷3
21782061.75
n÷5
17425649.4
n2
7591331425293009
n3
6.6141939948179E+23
n4
5.7628312808641E+31
n5
5.0210538725846E+39
2 √n
9334.25128224
3 √n
443.32238269193
4 √n
96.613929028065
5 √n
38.728599757731
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
-87128246
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 87128247 can be divided by 4 positive divisors.
The sum of these divisors (counting 87128247) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100010111100010110111
3
Ternary
20001221120111010
4
Quaternary
11030113202313
5
Quinary
134301100442
6
Senary
12351243303
8
Octal
514274267
10
Decimal
87128247
12
Duodecimal
25219533
16
Hexadecimal
53178b7
20
Vigesimal
174b0c7
36
Base36
1fvgl3
md5
46fa5083a513637067890ce96cee8acb
sha1
f6b3029adaf2ed1551c0b141b298b185f103e568
sha256
e42de15651690c3d0dc97fa89948dbd39b59e3e4265009893f8ca49657d1a564
sha512
d771b0e2be79fe187f2070c3c8a599a4dd40e2a75e9e8b92f9b80a02fbd6609b617f58c1370ac80882c90907fa577741b566f284e8bd5a6d3ded04ac8bd046d2
ripemd-160
eda615c94288fde1949dad2e8d6ee7c3d9202a19
Diameter
174256494
Circumference
547442921.39071
Area
2.3848871036666E+16
Volume
2.770547101805E+24
Surface area
9.5395484146663E+16
Circumference
547442921.39071
Perimeter
348512988
Area
7591331425293009
Diagonal
123217948.57319
Surface area
45547988551758054
Volume
6.6141939948179E+23
Space diagonal
150910550.57841
Perimeter
261384741
Area
3.2871429314254E+15
Altitude
75455275.289205
Surface area
3.2871429314254E+15
Volume
7.7949023763651E+22
Height
41072649.524398