87081621 is an odd 8-digits composite number following 87081620
and preceding 87081622 . In scientific notation, it is written as 8.7081621 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 52107120 positive integers (up to 87081621) that are relatively prime to 87081621.
87081621 has 16 divisors, whose sum is 128271360
The reverse of 87081621 is 12618078
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-seven million eighty-one thousand six hundred twenty-one
Scientific notation
8.7081621 × 10^7
Engineering notation
8.7081621 × 10^6
Prime Factorization
3 × 11 × 79 × 33403
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
87081621
Product of the distinct prime numbers
The prime factorization of 87081621 is 3 × 11 × 79 × 33403.
Since it has a total of 4 prime factors.
9 , 1 , 23 , 53 , 897 , 985 , 4201 , 6850 , 16849 , 82127 , 103298 , 944626 , 1224784 , 219633 , 75441264 , 96500818 , 420717143 , 953147904 , 8741377612 , 1111101358
n×2
174163242
n×3
261244863
n×4
348326484
n×5
435408105
n÷2
43540810.5
n÷3
29027207
n÷3
21770405.25
n÷5
17416324.2
n2
7583208715987641
n3
6.6035810736953E+23
n4
5.7505054430231E+31
n5
5.0076333554777E+39
2 √n
9331.7533722232
3 √n
443.24328841265
4 √n
96.60100088624
5 √n
38.72445380871
1 , 3 , 11 , 33 , 79 , 237 , 869 , 2607 , 33403 , 100209 , 367433 , 1102299 , 2638837 , 7916511 , 29027207 , 87081621
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-87081620
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87081621 can be divided by 16 positive divisors.
The sum of these divisors (counting 87081621) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101001100001100001010010101
3
Ternary
20001212012112020
4
Quaternary
11030030022111
5
Quinary
134243102441
6
Senary
12350243353
8
Octal
514141225
10
Decimal
87081621
12
Duodecimal
251b6559
16
Hexadecimal
530c295
20
Vigesimal
1745411
36
Base36
1fuglx
md5
1a11cb742c4d306411abec1b6b6add49
sha1
42673ef0b8bd17245267f668186e6ab790fb2139
sha256
5a6d0f4a91d8830fd9964689439d33295d68dc029539b0835408c82ad9beaa98
sha512
5ea40753780b4bb54071d3a745262033576d52f621916b0fa6444d6e836b90c518172bcb1f1244e40b14b55885b809281bcd54b4f2e0e979cdc5aad7424fbc8b
ripemd-160
68bc69c93c86cfb642913a1cda28b520ce5a9f30
Diameter
174163242
Circumference
547149961.59258
Area
2.3823352792785E+16
Volume
2.7661015718008E+24
Surface area
9.5293411171139E+16
Circumference
547149961.59258
Perimeter
348326484
Area
7583208715987641
Diagonal
123152009.45163
Surface area
45499252295925846
Volume
6.6035810736953E+23
Space diagonal
150829791.97746
Perimeter
261244863
Area
3.2836256951224E+15
Altitude
75414895.988728
Surface area
3.2836256951224E+15
Volume
7.7823949288752E+22
Height
41050669.817211