81490103 is an odd 8-digits composite number following 81490102
and preceding 81490104 . In scientific notation, it is written as 8.1490103 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 78861360 positive integers (up to 81490103) that are relatively prime to 81490103.
81490103 has 4 divisors, whose sum is 84118848
The reverse of 81490103 is 30109418
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million four hundred ninety thousand one hundred three
Scientific notation
8.1490103 × 10^7
Engineering notation
8.1490103 × 10^6
Prime Factorization
31 × 2628713
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81490103
Product of the distinct prime numbers
The prime factorization of 81490103 is 31 × 2628713.
Since it has a total of 2 prime factors.
9 , 6 , 3 , 65 , 215 , 138 , 891 , 163 , 5058 , 22968 , 410816 , 925283 , 4560880 , 6069939 , 18432523 , 16643411 , 623263472 , 709503299 , 8453122816 , 7054055037
n×2
162980206
n×3
244470309
n×4
325960412
n×5
407450515
n÷2
40745051.5
n÷3
27163367.666667
n÷3
20372525.75
n÷5
16298020.6
n2
6640636886950609
n3
5.411461839032E+23
n4
4.4098058264329E+31
n5
3.5935553100602E+39
2 √n
9027.1868818586
3 √n
433.54577229896
4 √n
95.011509207351
5 √n
38.213865732809
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
-81490102
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 81490103 can be divided by 4 positive divisors.
The sum of these divisors (counting 81490103) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110110111000010110111
3
Ternary
12200100010101222
4
Quaternary
10312313002313
5
Quinary
131330140403
6
Senary
12030340555
8
Octal
466670267
10
Decimal
81490103
12
Duodecimal
2335a75b
16
Hexadecimal
4db70b7
20
Vigesimal
1596553
36
Base36
1cim5z
md5
f8ce4e3864bd207bf36e659833541a48
sha1
04accdf6efe1d3e72b79cd534ad252357a890b27
sha256
10bde41e47f2e86a06529554886e766151e688d987c7c7bc78b2bd1f8e1a1c45
sha512
8cc8b12484e98d835de7cb0c8ca44266cec07cc418e15746e4fe4aa359c8205bb1797efad4bcd95e3c01aacb5ef903becfbff13dd1e97d4761629aefb3b95475
ripemd-160
c46f9daff7eb9290c56bf35fd2e4af9061e3ee0e
Diameter
162980206
Circumference
512017417.85015
Area
2.0862176059201E+16
Volume
2.2667478344913E+24
Surface area
8.3448704236806E+16
Circumference
512017417.85015
Perimeter
325960412
Area
6640636886950609
Diagonal
115244408.86178
Surface area
39843821321703654
Volume
5.411461839032E+23
Space diagonal
141144998.71002
Perimeter
244470309
Area
2.8754801207036E+15
Altitude
70572499.35501
Surface area
2.8754801207036E+15
Volume
6.3774689375196E+22
Height
38414802.953927