81551152 is an even 8-digits composite number following 81551151
and preceding 81551153 . In scientific notation, it is written as 8.1551152 × 10^7.
The sum of its digits is 28. It has a total of 6 prime factors and 20 positive divisors.
There are 40283648 positive integers (up to 81551152) that are relatively prime to 81551152.
81551152 has 20 divisors, whose sum is 159911640
The reverse of 81551152 is 25115518
Previous prime number is 83
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million five hundred fifty-one thousand one hundred fifty-two
Scientific notation
8.1551152 × 10^7
Engineering notation
8.1551152 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 83 × 61409
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
10193894
Product of the distinct prime numbers
The prime factorization of 81551152 is 2 × 2 × 2 × 2 × 83 × 61409.
Since it has a total of 6 prime factors.
9 , 8 , 70 , 53 , 854 , 198 , 6615 , 5055 , 55022 , 77484 , 946629 , 6990 , 8895291 , 7139433 , 2284501 , 55900825 , 841091930 , 321181669 , 902291029 , 6583524137
n×2
163102304
n×3
244653456
n×4
326204608
n×5
407755760
n÷2
40775576
n÷3
27183717.333333
n÷3
20387788
n÷5
16310230.4
n2
6650590392527104
n3
5.4236330799072E+23
n4
4.4230352569174E+31
n5
3.6070362053823E+39
2 √n
9030.5676455027
3 √n
433.65401010195
4 √n
95.02929887936
5 √n
38.219589665967
1 , 2 , 4 , 8 , 16 , 83 , 166 , 332 , 664 , 1328 , 61409 , 122818 , 245636 , 491272 , 982544 , 5096947 , 10193894 , 20387788 , 40775576 , 81551152
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81551151
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81551152 can be divided by 20 positive divisors.
The sum of these divisors (counting 81551152) is 1, the average is 0.05.
Base
System
Value
2
Binary
100110111000101111100110000
3
Ternary
12200110020011001
4
Quaternary
10313011330300
5
Quinary
131334114102
6
Senary
12031531344
8
Octal
467057460
10
Decimal
81551152
12
Duodecimal
23389b54
16
Hexadecimal
4dc5f30
20
Vigesimal
159dhhc
36
Base36
1cjx9s
md5
fa6a8d57617a1fbedfa7479fb514487f
sha1
a1465c8c27b175d7044051d95bdd497119bb8967
sha256
6b21800b1de589671ae3be61dbc622eb87fd8d1316466b396d69404d2b3f73f7
sha512
e4de907bd04a427f3bb4f26c1f7da2e98c73fb6242344d8cd42c0164328f14e14e0711ead0c8eb757e02b8e711bddd6a6b0a85bf887d697d6e5344e56410cb64
ripemd-160
1bb062b0b62dca9263c56678752c079463c603ab
Diameter
163102304
Circumference
512401000.02997
Area
2.0893445919198E+16
Volume
2.2718461119471E+24
Surface area
8.3573783676792E+16
Circumference
512401000.02997
Perimeter
326204608
Area
6650590392527104
Diagonal
115330745.18555
Surface area
39903542355162624
Volume
5.4236330799072E+23
Space diagonal
141250738.67977
Perimeter
244653456
Area
2.8797901150466E+15
Altitude
70625369.339886
Surface area
2.8797901150466E+15
Volume
6.3918128824501E+22
Height
38443581.728517