87121331 is an odd 8-digits composite number following 87121330
and preceding 87121332 . In scientific notation, it is written as 8.7121331 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 78078000 positive integers (up to 87121331) that are relatively prime to 87121331.
87121331 has 4 divisors, whose sum is 87140064
The reverse of 87121331 is 13312178
Previous prime number is 8591
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-seven million one hundred twenty-one thousand three hundred thirty-one
Scientific notation
8.7121331 × 10^7
Engineering notation
8.7121331 × 10^6
Prime Factorization
8591 × 10141
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87121331
Product of the distinct prime numbers
The prime factorization of 87121331 is 8591 × 10141.
Since it has a total of 2 prime factors.
3 , 6 , 62 , 50 , 75 , 342 , 5843 , 5758 , 94224 , 27291 , 53533 , 236627 , 9076958 , 1983688 , 87345708 , 16826556 , 13206074 , 801389680 , 9361159879 , 2724389786
n×2
174242662
n×3
261363993
n×4
348485324
n×5
435606655
n÷2
43560665.5
n÷3
29040443.666667
n÷3
21780332.75
n÷5
17424266.2
n2
7590126315211561
n3
6.6126190703936E+23
n4
5.7610017480867E+31
n5
5.0190614018664E+39
2 √n
9333.8808113239
3 √n
443.31065247878
4 √n
96.612011734172
5 √n
38.727984904317
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
-87121330
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 87121331 can be divided by 4 positive divisors.
The sum of these divisors (counting 87121331) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100010101110110110011
3
Ternary
20001221012222222
4
Quaternary
11030111312303
5
Quinary
134300340311
6
Senary
12351151255
8
Octal
514256663
10
Decimal
87121331
12
Duodecimal
2521552b
16
Hexadecimal
5315db3
20
Vigesimal
174a36b
36
Base36
1fvb8z
md5
a96dd9a6150e229d77c58729ae805e3c
sha1
7cda2209f6cdbc233ba69ad93c1ff6a3bf2a9a82
sha256
36f2105989420467d05d483956fd48f6dde125320784e812647ee7f93d1fced8
sha512
93c9381fc6f0a0b4836f2a56e6bbacd6de7af5d342cd13017fc83415437c00ad74ca2763b0aee552c108c6a30cc8673908e8cbca4b6b74a1a9005f8996f915b3
ripemd-160
4d1aa9326d9bd5866b9e864ee7b0f5f2bb42f311
Diameter
174242662
Circumference
547399466.88113
Area
2.3845085071687E+16
Volume
2.7698873990048E+24
Surface area
9.5380340286749E+16
Circumference
547399466.88113
Perimeter
348485324
Area
7590126315211561
Diagonal
123208167.8722
Surface area
45540757891269366
Volume
6.6126190703936E+23
Space diagonal
150898571.71503
Perimeter
261363993
Area
3.286621103453E+15
Altitude
75449285.857513
Surface area
3.286621103453E+15
Volume
7.7930463101313E+22
Height
41069389.290732