87130791 is an odd 8-digits composite number following 87130790
and preceding 87130792 . In scientific notation, it is written as 8.7130791 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 52806480 positive integers (up to 87130791) that are relatively prime to 87130791.
87130791 has 4 divisors, whose sum is 88011000
The reverse of 87130791 is 19703178
Previous prime number is 99
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
eighty-seven million one hundred thirty thousand seven hundred ninety-one
Scientific notation
8.7130791 × 10^7
Engineering notation
8.7130791 × 10^6
Prime Factorization
99 × 880109
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87130791
Product of the distinct prime numbers
The prime factorization of 87130791 is 99 × 880109.
Since it has a total of 2 prime factors.
9 , 10 , 19 , 15 , 204 , 423 , 936 , 4751 , 54715 , 89430 , 946388 , 680412 , 6225848 , 8784646 , 17182465 , 45082919 , 275778640 , 514677147 , 1921033113 , 4228891552
n×2
174261582
n×3
261392373
n×4
348523164
n×5
435653955
n÷2
43565395.5
n÷3
29043597
n÷3
21782697.75
n÷5
17426158.2
n2
7591774740285681
n3
6.6147733821491E+23
n4
5.763504370724E+31
n5
5.0217869475314E+39
2 √n
9334.387553557
3 √n
443.32669740885
4 √n
96.614634261881
5 √n
38.728825917239
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
-87130790
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 87130791 can be divided by 4 positive divisors.
The sum of these divisors (counting 87130791) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100011000001010100111
3
Ternary
20001221200222100
4
Quaternary
11030120022213
5
Quinary
134301141131
6
Senary
12351303143
8
Octal
514301247
10
Decimal
87130791
12
Duodecimal
2521aab3
16
Hexadecimal
53182a7
20
Vigesimal
174b6jb
36
Base36
1fvijr
md5
4676fe4524bb471c9827be7bec6ba928
sha1
c21f48f8fbe3fe9b1095eed8fd70fda89185dd30
sha256
791abec4ad54a2d9daafe2330f47a302008b6ffc29449ceea0dc00083d6a3b97
sha512
1d1f76a1d8d55a561b9e35a44d187395102c1495369bd104a85b8f3698f7125c81ff9a4dda597f391624b31c65029ac25d13faa02cfe86431087dd8df58f6755
ripemd-160
89b76a32e7ca4f5fc576cc2c4c1a45a45d313e73
Diameter
174261582
Circumference
547458905.81414
Area
2.385026375179E+16
Volume
2.7707897950028E+24
Surface area
9.540105500716E+16
Circumference
547458905.81414
Perimeter
348523164
Area
7591774740285681
Diagonal
123221546.3325
Surface area
45550648441714086
Volume
6.6147733821491E+23
Space diagonal
150914956.91567
Perimeter
261392373
Area
3.2873348924482E+15
Altitude
75457478.457833
Surface area
3.2873348924482E+15
Volume
7.7955851908832E+22
Height
41073848.777499