87081231 is an odd 8-digits composite number following 87081230
and preceding 87081232 . In scientific notation, it is written as 8.7081231 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 58054152 positive integers (up to 87081231) that are relatively prime to 87081231.
87081231 has 4 divisors, whose sum is 116108312
The reverse of 87081231 is 13218078
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-seven million eighty-one thousand two hundred thirty-one
Scientific notation
8.7081231 × 10^7
Engineering notation
8.7081231 × 10^6
Prime Factorization
3 × 29027077
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87081231
Product of the distinct prime numbers
The prime factorization of 87081231 is 3 × 29027077.
Since it has a total of 2 prime factors.
10 , 5 , 72 , 90 , 685 , 853 , 6190 , 6514 , 64255 , 19674 , 587929 , 469489 , 5823243 , 6723328 , 81327538 , 80584699 , 231310791 , 862389551 , 3751887852 , 1497165514
n×2
174162462
n×3
261243693
n×4
348324924
n×5
435406155
n÷2
43540615.5
n÷3
29027077
n÷3
21770307.75
n÷5
17416246.2
n2
7583140792475361
n3
6.6034923505507E+23
n4
5.7504024278504E+31
n5
5.007521221626E+39
2 √n
9331.7324758053
3 √n
443.24262671489
4 √n
96.600892727787
5 √n
38.724419122714
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
-87081230
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 87081231 can be divided by 4 positive divisors.
The sum of these divisors (counting 87081231) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100001100000100001111
3
Ternary
20001212011222210
4
Quaternary
11030030010033
5
Quinary
134243044411
6
Senary
12350241503
8
Octal
514140417
10
Decimal
87081231
12
Duodecimal
251b6293
16
Hexadecimal
530c10f
20
Vigesimal
174531b
36
Base36
1fugb3
md5
57374850a87fb3ed189ee33997dab752
sha1
fdf1e5bcf7a861a41e5afe70d6a40b1f16654899
sha256
d4ebc6d81908d338cf59df354189226f59bfed5dfc66771c36266113e69d2be4
sha512
5cbe3af13cb052e4715e1f7840e258823f6e7778594e043e7e46d4db715bfb2bcf7aaa989527ec39126b93ee237da5d05d020bfc9320e97ed89f24f35a03de31
ripemd-160
28d8e07b8099b7d0412e12334617b22cdc10174f
Diameter
174162462
Circumference
547147511.15031
Area
2.3823139404778E+16
Volume
2.7660644075369E+24
Surface area
9.5292557619111E+16
Circumference
547147511.15031
Perimeter
348324924
Area
7583140792475361
Diagonal
123151457.90834
Surface area
45498844754852166
Volume
6.6034923505507E+23
Space diagonal
150829116.47764
Perimeter
261243693
Area
3.2835962833789E+15
Altitude
75414558.238821
Surface area
3.2835962833789E+15
Volume
7.7822903676465E+22
Height
41050485.969448