81502485 is an odd 8-digits composite number following 81502484
and preceding 81502486 . In scientific notation, it is written as 8.1502485 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 42818688 positive integers (up to 81502485) that are relatively prime to 81502485.
81502485 has 8 divisors, whose sum is 88234624
The reverse of 81502485 is 58420518
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million five hundred two thousand four hundred eighty-five
Scientific notation
8.1502485 × 10^7
Engineering notation
8.1502485 × 10^6
Prime Factorization
15 × 67 × 81097
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81502485
Product of the distinct prime numbers
The prime factorization of 81502485 is 15 × 67 × 81097.
Since it has a total of 3 prime factors.
6 , 8 , 81 , 63 , 715 , 977 , 7547 , 8486 , 2982 , 7377 , 528463 , 667 , 6856876 , 1649773 , 58342265 , 37800663 , 153236289 , 215875897 , 77366559 , 3549837750
n×2
163004970
n×3
244507455
n×4
326009940
n×5
407512425
n÷2
40751242.5
n÷3
27167495
n÷3
20375621.25
n÷5
16300497
n2
6642655061175225
n3
5.4139289448361E+23
n4
4.4124866261757E+31
n5
3.5962862506258E+39
2 √n
9027.8726730055
3 √n
433.56772953339
4 √n
95.015118128672
5 √n
38.215026942116
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81502484
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81502485 can be divided by 8 positive divisors.
The sum of these divisors (counting 81502485) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110111010000100010101
3
Ternary
12200100202101120
4
Quaternary
10312322010111
5
Quinary
131331034420
6
Senary
12030514153
8
Octal
466720425
10
Decimal
81502485
12
Duodecimal
23365959
16
Hexadecimal
4dba115
20
Vigesimal
1597g45
36
Base36
1civpx
md5
4acb76e07cf51576fd87d735b3b55ffc
sha1
e837adaa8ca51e0d896bfd54153a1aab52bad899
sha256
b7055764d000da5fb3ac901b3e5790db7743c23a6cb8b6338144e33af799dbab
sha512
572b9e07a0bd52f3067ca11979eb19ce92ca4e737b77ca5bf53aea7f80bed5182076fcff0b57cfb6cc76269fc1a1d1d071d1837d8166a53e8a470937b34eabf9
ripemd-160
46759e97c3b49aeb071fe969c434333dc6bb19f4
Diameter
163004970
Circumference
512095216.25062
Area
2.0868516340519E+16
Volume
2.2677812533539E+24
Surface area
8.3474065362077E+16
Circumference
512095216.25062
Perimeter
326009940
Area
6642655061175225
Diagonal
115261919.65411
Surface area
39855930367051350
Volume
5.4139289448361E+23
Space diagonal
141166444.96312
Perimeter
244507455
Area
2.8763540157775E+15
Altitude
70583222.48156
Surface area
2.8763540157775E+15
Volume
6.3803764495929E+22
Height
38420639.884703