81382007 is an odd 8-digits composite number following 81382006
and preceding 81382008 . In scientific notation, it is written as 8.1382007 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 67706880 positive integers (up to 81382007) that are relatively prime to 81382007.
81382007 has 16 divisors, whose sum is 95764032
The reverse of 81382007 is 70028318
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million three hundred eighty-two thousand seven
Scientific notation
8.1382007 × 10^7
Engineering notation
8.1382007 × 10^6
Prime Factorization
7 × 233 × 41 × 1217
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81382007
Product of the distinct prime numbers
The prime factorization of 81382007 is 7 × 233 × 41 × 1217.
Since it has a total of 4 prime factors.
2 , 6 , 18 , 86 , 408 , 511 , 8826 , 5194 , 689 , 91031 , 490970 , 563202 , 4403560 , 8950214 , 97656570 , 44767975 , 869268684 , 165625665 , 8360934297 , 7171603010
n×2
162764014
n×3
244146021
n×4
325528028
n×5
406910035
n÷2
40691003.5
n÷3
27127335.666667
n÷3
20345501.75
n÷5
16276401.4
n2
6623031063348049
n3
5.3899556035861E+23
n4
4.3864540466073E+31
n5
3.5697843392618E+39
2 √n
9021.1976477627
3 √n
433.3539890877
4 √n
94.979985511489
5 √n
38.203722269012
1 , 7 , 41 , 233 , 287 , 1217 , 1631 , 8519 , 9553 , 49897 , 66871 , 283561 , 349279 , 1984927 , 11626001 , 81382007
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
-81382006
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 81382007 can be divided by 16 positive divisors.
The sum of these divisors (counting 81382007) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110011100101001110111
3
Ternary
12200010122010102
4
Quaternary
10312130221313
5
Quinary
131313211012
6
Senary
12024144315
8
Octal
466345167
10
Decimal
81382007
12
Duodecimal
2330809b
16
Hexadecimal
4d9ca77
20
Vigesimal
158cf07
36
Base36
1cgarb
md5
f78b027ff9f1c33e5a94d347059ba162
sha1
0146be0b3a32d6a4ad3adb9337c035a6c071a8db
sha256
3b30d5ca12064cdc582b90bb7a46e16db31ced51cbdb6f23432a7838e81227b4
sha512
d04a7066afd4cd1001a8ef8253c905fc4911a709ef40e24bc604326639283319929ed5b15a4294920bc66f26d86afa3a5eae97df9d05d4ef890ae1d7520d209c
ripemd-160
6ff3f3260101a985ce0c9a16e678f1d420f51a13
Diameter
162764014
Circumference
511338230.65119
Area
2.0806865733111E+16
Volume
2.2577393236535E+24
Surface area
8.3227462932445E+16
Circumference
511338230.65119
Perimeter
325528028
Area
6623031063348049
Diagonal
115091538.03254
Surface area
39738186380088294
Volume
5.3899556035861E+23
Space diagonal
140957770.94593
Perimeter
244146021
Area
2.8678565754564E+15
Altitude
70478885.472963
Surface area
2.8678565754564E+15
Volume
6.3521235959836E+22
Height
38363846.010847