81551160 is an even 8-digits composite number following 81551159
and preceding 81551161 . In scientific notation, it is written as 8.1551160 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 16 positive divisors.
There are 21746880 positive integers (up to 81551160) that are relatively prime to 81551160.
81551160 has 16 divisors, whose sum is 156307080
The reverse of 81551160 is 06115518
Previous prime number is 45
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighty-one million five hundred fifty-one thousand one hundred sixty
Scientific notation
8.1551160 × 10^7
Engineering notation
8.1551160 × 10^6
Prime Factorization
2 × 2 × 2 × 45 × 226531
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20387790
Product of the distinct prime numbers
The prime factorization of 81551160 is 2 × 2 × 2 × 45 × 226531.
Since it has a total of 5 prime factors.
8 , 3 , 75 , 29 , 969 , 434 , 1542 , 1032 , 94055 , 50805 , 968330 , 614903 , 4137477 , 6863514 , 95041101 , 36368520 , 756909276 , 631184109 , 5056148888 , 7486709313
n×2
163102320
n×3
244653480
n×4
326204640
n×5
407755800
n÷2
40775580
n÷3
27183720
n÷3
20387790
n÷5
16310232
n2
6650591697345600
n3
5.423634676049E+23
n4
4.4230369924802E+31
n5
3.6070379745967E+39
2 √n
9030.5680884427
3 √n
433.65402428214
4 √n
95.029301209904
5 √n
38.21959041582
1 , 2 , 4 , 8 , 45 , 90 , 180 , 360 , 226531 , 453062 , 906124 , 1812248 , 10193895 , 20387790 , 40775580 , 81551160
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
-81551159
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 81551160 can be divided by 16 positive divisors.
The sum of these divisors (counting 81551160) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111000101111100111000
3
Ternary
12200110020011100
4
Quaternary
10313011330320
5
Quinary
131334114120
6
Senary
12031531400
8
Octal
467057470
10
Decimal
81551160
12
Duodecimal
23389b60
16
Hexadecimal
4dc5f38
20
Vigesimal
159dhi0
36
Base36
1cjxa0
md5
b840107a67cf5ad2ca89c15f659a5b33
sha1
170245d16bef44c13877fba9589c40d0a619dafb
sha256
d13908ef0e89b638797f1144f700193cdeda52a480d0d50c24dadaf73c0efdc9
sha512
cc5c78303311ecea6deac17367807789c87b9ef1da2da8b124e2b99e020a24550249bb555f22bcd9d1b0245cedcc18d42ecb3a9a8f0b7f0ffbd18e1241b057a7
ripemd-160
c42a454c313e4dc275d4b696cee2c5c497bcce05
Diameter
163102320
Circumference
512401050.29545
Area
2.0893450018406E+16
Volume
2.2718467805374E+24
Surface area
8.3573800073625E+16
Circumference
512401050.29545
Perimeter
326204640
Area
6650591697345600
Diagonal
115330756.49926
Surface area
39903550184073600
Volume
5.423634676049E+23
Space diagonal
141250752.53618
Perimeter
244653480
Area
2.8797906800496E+15
Altitude
70625376.268089
Surface area
2.8797906800496E+15
Volume
6.3918147635213E+22
Height
38443585.499753