87081920 is an even 8-digits composite number following 87081919
and preceding 87081921 . In scientific notation, it is written as 8.7081920 × 10^7.
The sum of its digits is 35. It has a total of 8 prime factors and 28 positive divisors.
There are 34832640 positive integers (up to 87081920) that are relatively prime to 87081920.
87081920 has 28 divisors, whose sum is 207364584
The reverse of 87081920 is 02918078
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-seven million eighty-one thousand nine hundred twenty
Scientific notation
8.7081920 × 10^7
Engineering notation
8.7081920 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 5 × 272131
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
2721310
Product of the distinct prime numbers
The prime factorization of 87081920 is 2 × 2 × 2 × 2 × 2 × 2 × 5 × 272131.
Since it has a total of 8 prime factors.
8 , 6 , 93 , 27 , 151 , 409 , 6903 , 6246 , 57898 , 37555 , 477450 , 886341 , 241592 , 4400220 , 77928039 , 34562727 , 407928644 , 54916949 , 4829341880 , 3200815180
n×2
174163840
n×3
261245760
n×4
348327680
n×5
435409600
n÷2
43540960
n÷3
29027306.666667
n÷3
21770480
n÷5
17416384
n2
7583260790886400
n3
6.6036490953111E+23
n4
5.7505844222595E+31
n5
5.0077193261245E+39
2 √n
9331.7693927786
3 √n
443.24379571293
4 √n
96.601083807474
5 √n
38.724480401224
1 , 2 , 4 , 5 , 8 , 10 , 16 , 20 , 32 , 40 , 64 , 80 , 160 , 320 , 272131 , 544262 , 1088524 , 1360655 , 2177048 , 2721310 , 4354096 , 5442620 , 8708192 , 10885240 , 17416384 , 21770480 , 43540960 , 87081920
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-87081919
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87081920 can be divided by 28 positive divisors.
The sum of these divisors (counting 87081920) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
101001100001100001111000000
3
Ternary
20001212012221022
4
Quaternary
11030030033000
5
Quinary
134243110140
6
Senary
12350245012
8
Octal
514141700
10
Decimal
87081920
12
Duodecimal
251b6768
16
Hexadecimal
530c3c0
20
Vigesimal
17454g0
36
Base36
1fugu8
md5
ba027628cbc5ffda019b92d9ef8556ec
sha1
94d64a491dafb8965941037d9552522ede1e5b37
sha256
d6a877e2ccc19e79610c51e3337ed76e4988a8775cbb0c6b8f9dfb6d9d97e58b
sha512
131ee6e5982ebc4f2ba5f7b242ef1116ee61343412082a673a37215f813ac3777f2ad7101f9ea128bdc6b6e7886101e949f13cabd40685df3cbe877bbde5db94
ripemd-160
87b5e3c9543dbaf477dbed43742b739ec462fb53
Diameter
174163840
Circumference
547151840.26499
Area
2.3823516390904E+16
Volume
2.7661300646285E+24
Surface area
9.5294065563617E+16
Circumference
547151840.26499
Perimeter
348327680
Area
7583260790886400
Diagonal
123152432.30149
Surface area
45499564745318400
Volume
6.6036490953111E+23
Space diagonal
150830309.86065
Perimeter
261245760
Area
3.283648244215E+15
Altitude
75415154.930324
Surface area
3.283648244215E+15
Volume
7.7824750931181E+22
Height
41050810.767163