81254669 is an odd 8-digits composite number following 81254668
and preceding 81254670 . In scientific notation, it is written as 8.1254669 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 80416896 positive integers (up to 81254669) that are relatively prime to 81254669.
81254669 has 4 divisors, whose sum is 82092444
The reverse of 81254669 is 96645218
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million two hundred fifty-four thousand six hundred sixty-nine
Scientific notation
8.1254669 × 10^7
Engineering notation
8.1254669 × 10^6
Prime Factorization
97 × 837677
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81254669
Product of the distinct prime numbers
The prime factorization of 81254669 is 97 × 837677.
Since it has a total of 2 prime factors.
3 , 2 , 64 , 41 , 174 , 769 , 4151 , 451 , 29799 , 17784 , 746351 , 985266 , 1115411 , 2825839 , 90418840 , 9417410 , 137262648 , 918513907 , 1487030705 , 8282881479
n×2
162509338
n×3
243764007
n×4
325018676
n×5
406273345
n÷2
40627334.5
n÷3
27084889.666667
n÷3
20313667.25
n÷5
16250933.8
n2
6602321234299561
n3
5.3646942652468E+23
n4
4.3590645680883E+31
n5
3.5419434862964E+39
2 √n
9014.137174461
3 √n
433.12784886104
4 √n
94.942810019827
5 √n
38.19175934652
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81254668
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81254669 can be divided by 4 positive divisors.
The sum of these divisors (counting 81254669) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101111101100100001101
3
Ternary
12122220011110012
4
Quaternary
10311331210031
5
Quinary
131300122134
6
Senary
12021323005
8
Octal
465754415
10
Decimal
81254669
12
Duodecimal
23266465
16
Hexadecimal
4d7d90d
20
Vigesimal
157ggd9
36
Base36
1cdki5
md5
59b59bcee31e7505584cda6450c73f91
sha1
d12d7d29b6d7c1ec2ac4293f87597016fa56d497
sha256
4cb961302e154df4c1d2e615a9dd0cf1a51464f120569168d592d8bf6bf239d0
sha512
029ee2294a3ae9d0176497c485e101aa775df8cc441c2f7c4e6e4b0f95abcc6010b76f64f9e27af42bd1d7d3672ec580cd0843dec4146c05f8346fc2fd2d6e77
ripemd-160
75ac5375f7fbcb67bedee90d6832a5ac484a6b74
Diameter
162509338
Circumference
510538142.40054
Area
2.0741803886315E+16
Volume
2.247157878994E+24
Surface area
8.2967215545262E+16
Circumference
510538142.40054
Perimeter
325018676
Area
6602321234299561
Diagonal
114911454.90594
Surface area
39613927405797366
Volume
5.3646942652468E+23
Space diagonal
140737215.06019
Perimeter
243764007
Area
2.8588889564244E+15
Altitude
70368607.530096
Surface area
2.8588889564244E+15
Volume
6.3223528232477E+22
Height
38303818.301979