81124589 is an odd 8-digits composite number following 81124588
and preceding 81124590 . In scientific notation, it is written as 8.1124589 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 64050048 positive integers (up to 81124589) that are relatively prime to 81124589.
81124589 has 16 divisors, whose sum is 100058112
The reverse of 81124589 is 98542118
Previous prime number is 1033
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million one hundred twenty-four thousand five hundred eighty-nine
Scientific notation
8.1124589 × 10^7
Engineering notation
8.1124589 × 10^6
Prime Factorization
7 × 13 × 1033 × 863
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81124589
Product of the distinct prime numbers
The prime factorization of 81124589 is 7 × 13 × 1033 × 863.
Since it has a total of 4 prime factors.
1 , 8 , 94 , 73 , 144 , 182 , 7863 , 9432 , 96172 , 73206 , 532249 , 571896 , 5877602 , 876712 , 24788920 , 67498840 , 402109474 , 89903488 , 7052997652 , 4462974469
n×2
162249178
n×3
243373767
n×4
324498356
n×5
405622945
n÷2
40562294.5
n÷3
27041529.666667
n÷3
20281147.25
n÷5
16224917.8
n2
6581198940418921
n3
5.3389705916872E+23
n4
4.3312179493371E+31
n5
3.513682760094E+39
2 √n
9006.9189515616
3 √n
432.89659502056
4 √n
94.904788875808
5 √n
38.179523327446
1 , 7 , 13 , 91 , 863 , 1033 , 6041 , 7231 , 11219 , 13429 , 78533 , 94003 , 891479 , 6240353 , 11589227 , 81124589
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
-81124588
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 81124589 can be divided by 16 positive divisors.
The sum of these divisors (counting 81124589) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101011101110011101101
3
Ternary
12122122120000102
4
Quaternary
10311131303231
5
Quinary
131231441324
6
Senary
12014440445
8
Octal
465356355
10
Decimal
81124589
12
Duodecimal
23203125
16
Hexadecimal
4d5dced
20
Vigesimal
1570b99
36
Base36
1cas4t
md5
78de361d57bfc4eed8532d805284ad97
sha1
6e3b05fc34a533ab91156a2ad51e00b1eaba5e2a
sha256
e6d6499b188b0530f0cd3c907e03e4cf8c0609ac1fe182ffd65da7f81b7f9a53
sha512
be53fd7f689bb5aaaa3d3d9f8c6794faef01ef06858a37f59f3bb5895135e142a9dbb53fa4d56c96cd750ae74a68feff23092141b39c0006657816b13bec677b
ripemd-160
fe71ed9d472fcec5f4fad4eaef45a9f357745950
Diameter
162249178
Circumference
509720825.65578
Area
2.0675446243033E+16
Volume
2.2363827718102E+24
Surface area
8.2701784972132E+16
Circumference
509720825.65578
Perimeter
324498356
Area
6581198940418921
Diagonal
114727494.00574
Surface area
39487193642513526
Volume
5.3389705916872E+23
Space diagonal
140511909.89114
Perimeter
243373767
Area
2.849742734881E+15
Altitude
70255954.945572
Surface area
2.849742734881E+15
Volume
6.2920371832293E+22
Height
38242498.001914