81820007 is an odd 8-digits composite number following 81820006
and preceding 81820008 . In scientific notation, it is written as 8.1820007 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 80582040 positive integers (up to 81820007) that are relatively prime to 81820007.
81820007 has 8 divisors, whose sum is 83066880
The reverse of 81820007 is 70002818
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million eight hundred twenty thousand seven
Scientific notation
8.1820007 × 10^7
Engineering notation
8.1820007 × 10^6
Prime Factorization
103 × 191 × 4159
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81820007
Product of the distinct prime numbers
The prime factorization of 81820007 is 103 × 191 × 4159.
Since it has a total of 3 prime factors.
7 , 2 , 70 , 50 , 156 , 2 , 6349 , 3906 , 19956 , 65194 , 909817 , 604572 , 2607412 , 2894687 , 6918690 , 72465207 , 266830233 , 207145478 , 6002964679 , 446896822
n×2
163640014
n×3
245460021
n×4
327280028
n×5
409100035
n÷2
40910003.5
n÷3
27273335.666667
n÷3
20455001.75
n÷5
16364001.4
n2
6694513545480049
n3
5.4774514515277E+23
n4
4.4816511610616E+31
n5
3.6668872936962E+39
2 √n
9045.4412274913
3 √n
434.13003918243
4 √n
95.107524557689
5 √n
38.244756702529
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
-81820006
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 81820007 can be divided by 8 positive divisors.
The sum of these divisors (counting 81820007) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000000111100101100111
3
Ternary
12200221212221122
4
Quaternary
10320013211213
5
Quinary
131421220012
6
Senary
12041404155
8
Octal
470074547
10
Decimal
81820007
12
Duodecimal
2349965b
16
Hexadecimal
4e07967
20
Vigesimal
15b7a07
36
Base36
1cpopz
md5
7961e295fb4c751e4e9b63024d059532
sha1
44316b965baaa0266e3510e9f21d6c9df35a7e85
sha256
0a2a2b2c5953dfe2eb821844a2230699bb2a58f1f5a9ac3c4618e0cf920558d4
sha512
cca75574a4718a501fbb36f3fb5a8f16131b69c50c9e49f17fd5af7abf60814f58dc5284ec9e62a451f7840c566ec5e63b1351978469afab88e3cfd8fe2eccf2
ripemd-160
ee21c10c62c216463f77c9759964656d4ec7e329
Diameter
163640014
Circumference
514090265.81573
Area
2.1031434573837E+16
Volume
2.2943894987352E+24
Surface area
8.412573829535E+16
Circumference
514090265.81573
Perimeter
327280028
Area
6694513545480049
Diagonal
115710963.57286
Surface area
40167081272880294
Volume
5.4774514515277E+23
Space diagonal
141716409.19964
Perimeter
245460021
Area
2.8988093981824E+15
Altitude
70858204.599821
Surface area
2.8988093981824E+15
Volume
6.4552384416589E+22
Height
38570321.190954