87681639 is an odd 8-digits composite number following 87681638
and preceding 87681640 . In scientific notation, it is written as 8.7681639 × 10^7.
The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors.
There are 58454424 positive integers (up to 87681639) that are relatively prime to 87681639.
87681639 has 4 divisors, whose sum is 116908856
The reverse of 87681639 is 93618678
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
eighty-seven million six hundred eighty-one thousand six hundred thirty-nine
Scientific notation
8.7681639 × 10^7
Engineering notation
8.7681639 × 10^6
Prime Factorization
3 × 29227213
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87681639
Product of the distinct prime numbers
The prime factorization of 87681639 is 3 × 29227213.
Since it has a total of 2 prime factors.
9 , 2 , 94 , 12 , 965 , 582 , 2360 , 2457 , 39216 , 89440 , 617561 , 692379 , 9105946 , 6428581 , 28674179 , 61743936 , 509185512 , 474455692 , 9907678748 , 5237863175
n×2
175363278
n×3
263044917
n×4
350726556
n×5
438408195
n÷2
43840819.5
n÷3
29227213
n÷3
21920409.75
n÷5
17536327.8
n2
7688069817726321
n3
6.7410256236468E+23
n4
5.9106417522234E+31
n5
5.1825475637678E+39
2 √n
9363.8474464293
3 √n
444.25898473012
4 √n
96.766974978188
5 √n
38.77767191174
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
-87681638
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 87681639 can be divided by 4 positive divisors.
The sum of these divisors (counting 87681639) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001110011110101001100111
3
Ternary
20002222200121010
4
Quaternary
11032132221213
5
Quinary
134421303024
6
Senary
12411153303
8
Octal
516365147
10
Decimal
87681639
12
Duodecimal
25445833
16
Hexadecimal
539ea67
20
Vigesimal
178041j
36
Base36
1g7bl3
md5
526fdf2eac39e3dd18cdc0eeabf93d39
sha1
097aac485da06aea20b7446bd347c1ea11d68bad
sha256
cf8e3f853e791baf6f91550629a5d6118d90610c7370f52d001974fda6d50613
sha512
f8b0154b53d4568896ab5b46253e62dfaa6b793a3cceb54cd2090c66f4efe4053f3f7c2547a9e8f7b89aac4f9f216d7c50b4110038c29df2ceb4a7fefab0f893
ripemd-160
8e82d04ae8bd18eb7d5ccc979db45541c1b570a0
Diameter
175363278
Circumference
550919985.87422
Area
2.4152783659654E+16
Volume
2.8236742102546E+24
Surface area
9.6611134638618E+16
Circumference
550919985.87422
Perimeter
350726556
Area
7688069817726321
Diagonal
124000563.0449
Surface area
46128418906357926
Volume
6.7410256236468E+23
Space diagonal
151869053.63891
Perimeter
263044917
Area
3.3290318841097E+15
Altitude
75934526.819456
Surface area
3.3290318841097E+15
Volume
7.9443748843882E+22
Height
41333521.014967