87381091 is an odd 8-digits composite number following 87381090
and preceding 87381092 . In scientific notation, it is written as 8.7381091 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 74898072 positive integers (up to 87381091) that are relatively prime to 87381091.
87381091 has 4 divisors, whose sum is 99864112
The reverse of 87381091 is 19018378
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-seven million three hundred eighty-one thousand ninety-one
Scientific notation
8.7381091 × 10^7
Engineering notation
8.7381091 × 10^6
Prime Factorization
7 × 12483013
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87381091
Product of the distinct prime numbers
The prime factorization of 87381091 is 7 × 12483013.
Since it has a total of 2 prime factors.
3 , 6 , 31 , 65 , 539 , 328 , 8227 , 7841 , 91723 , 49267 , 991175 , 58607 , 9151893 , 6146054 , 19320538 , 49921741 , 793050446 , 458100437 , 3934959533 , 7092020427
n×2
174762182
n×3
262143273
n×4
349524364
n×5
436905455
n÷2
43690545.5
n÷3
29127030.333333
n÷3
21845272.75
n÷5
17476218.2
n2
7635455064350281
n3
6.671943938044E+23
n4
5.8300174039712E+31
n5
5.0943328130799E+39
2 √n
9347.7853526918
3 √n
443.75080536784
4 √n
96.683945682268
5 √n
38.751051597102
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
-87381090
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 87381091 can be divided by 4 positive divisors.
The sum of these divisors (counting 87381091) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001101010101010001100011
3
Ternary
20002102102022201
4
Quaternary
11031111101203
5
Quinary
134332143331
6
Senary
12400514031
8
Octal
515252143
10
Decimal
87381091
12
Duodecimal
2531b917
16
Hexadecimal
5355463
20
Vigesimal
1762ceb
36
Base36
1g0voj
md5
bf50586406864c3b54095ad9b460a72f
sha1
189808393705952e5d4b248d3e219d9d8e821f6f
sha256
b838c1fcf9a3974f3b207bbf1253613b75cb00fd0677c592a1f422ff31c2f649
sha512
c4ce81f78744a93ac87f0e2cbe313a6b629b8b19d61836650fb27939713ab03d9009d63165ff8c908f883be6e0cd422ab00e72f3ab1fad727ef8ffe5fcf521e8
ripemd-160
d5eda89fe05d804820f0abc4ba246858acff17fa
Diameter
174762182
Circumference
549031587.09652
Area
2.3987489536978E+16
Volume
2.7947373414563E+24
Surface area
9.5949958147911E+16
Circumference
549031587.09652
Perimeter
349524364
Area
7635455064350281
Diagonal
123575523.98716
Surface area
45812730386101686
Volume
6.671943938044E+23
Space diagonal
151348489.2328
Perimeter
262143273
Area
3.3062490275909E+15
Altitude
75674244.6164
Surface area
3.3062490275909E+15
Volume
7.8629613371457E+22
Height
41191841.329053