87087921 is an odd 8-digits composite number following 87087920
and preceding 87087922 . In scientific notation, it is written as 8.7087921 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 58058612 positive integers (up to 87087921) that are relatively prime to 87087921.
87087921 has 4 divisors, whose sum is 116117232
The reverse of 87087921 is 12978078
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-seven million eighty-seven thousand nine hundred twenty-one
Scientific notation
8.7087921 × 10^7
Engineering notation
8.7087921 × 10^6
Prime Factorization
3 × 29029307
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87087921
Product of the distinct prime numbers
The prime factorization of 87087921 is 3 × 29029307.
Since it has a total of 2 prime factors.
4 , 9 , 61 , 6 , 834 , 751 , 7268 , 7077 , 42532 , 86247 , 17809 , 873357 , 1142103 , 1829575 , 92359880 , 87140933 , 637496727 , 939799732 , 9007373990 , 515631248
n×2
174175842
n×3
261263763
n×4
348351684
n×5
435439605
n÷2
43543960.5
n÷3
29029307
n÷3
21771980.25
n÷5
17417584.2
n2
7584305984102241
n3
6.6050144038332E+23
n4
5.7521697260489E+31
n5
5.0094450268074E+39
2 √n
9332.0909232604
3 √n
443.25397710275
4 √n
96.602748010916
5 √n
38.725014103745
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
-87087920
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 87087921 can be divided by 4 positive divisors.
The sum of these divisors (counting 87087921) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100001101101100110001
3
Ternary
20001212112011120
4
Quaternary
11030031230301
5
Quinary
134243303141
6
Senary
12350332453
8
Octal
514155461
10
Decimal
87087921
12
Duodecimal
251ba129
16
Hexadecimal
530db31
20
Vigesimal
1745jg1
36
Base36
1fulgx
md5
bbc5bee46798f5536c1ad67c7e7e1395
sha1
9020a9408e0d724ebe74d25ad9f50bbda2c1922f
sha256
03e32759a7c0af6d98def514fcb0270a6ae636dc6e21510a54444ca75b0d4cef
sha512
1fb16d8056dd0d216cfcbed1736af2b6679f5800c51fabcdeb83bd300d93b5eb62048ec550628bc00073b5af64b7f1d2926b28247ac80173fd232371eb75b770
ripemd-160
ef776613aa84d3de45b1a3d74855de71d957bbbc
Diameter
174175842
Circumference
547189545.66002
Area
2.3826799962233E+16
Volume
2.766701963725E+24
Surface area
9.5307199848931E+16
Circumference
547189545.66002
Perimeter
348351684
Area
7584305984102241
Diagonal
123160918.99708
Surface area
45505835904613446
Volume
6.6050144038332E+23
Space diagonal
150840703.89754
Perimeter
261263763
Area
3.2841008261534E+15
Altitude
75420351.948772
Surface area
3.2841008261534E+15
Volume
7.7840841246422E+22
Height
41053639.665692