81749103 is an odd 8-digits composite number following 81749102
and preceding 81749104 . In scientific notation, it is written as 8.1749103 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 54499400 positive integers (up to 81749103) that are relatively prime to 81749103.
81749103 has 4 divisors, whose sum is 108998808
The reverse of 81749103 is 30194718
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million seven hundred forty-nine thousand one hundred three
Scientific notation
8.1749103 × 10^7
Engineering notation
8.1749103 × 10^6
Prime Factorization
3 × 27249701
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81749103
Product of the distinct prime numbers
The prime factorization of 81749103 is 3 × 27249701.
Since it has a total of 2 prime factors.
8 , 6 , 24 , 93 , 151 , 880 , 3400 , 7895 , 11738 , 53118 , 41179 , 751567 , 7663356 , 2438575 , 69792777 , 70492131 , 330074424 , 140151549 , 9280447069 , 6944293390
n×2
163498206
n×3
245247309
n×4
326996412
n×5
408745515
n÷2
40874551.5
n÷3
27249701
n÷3
20437275.75
n÷5
16349820.6
n2
6682915841304609
n3
5.4632237545114E+23
n4
4.466136414196E+31
n5
3.6510264573616E+39
2 √n
9041.5210556631
3 √n
434.0045993977
4 √n
95.086913167182
5 √n
38.238125936321
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
-81749102
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 81749103 can be divided by 4 positive divisors.
The sum of these divisors (counting 81749103) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111110110010001101111
3
Ternary
12200211021200120
4
Quaternary
10313312101233
5
Quinary
131411432403
6
Senary
12040100023
8
Octal
467662157
10
Decimal
81749103
12
Duodecimal
23464613
16
Hexadecimal
4df646f
20
Vigesimal
15aicf3
36
Base36
1co60f
md5
b1eef07a3fec5e29992f70753956b6cf
sha1
48d2b3a8e30f23f143c79669f2e9a0d6fc2714be
sha256
fd510a69f60f5f5e2b62ad55ab0027f8ce5414cac55a8d98fa4759401ab85bcc
sha512
ed8f64f708eeee9187e89483a189736f24bbd8fa296f09391efe84bee5f42b6998e637b2b1bf4ebbc46c72e985b7b4f6d95b9e24a4f79121b73f6be7cb8c1edb
ripemd-160
3ccc6e523ba1302f2f7dc4bd4fffbedbf77943d9
Diameter
163498206
Circumference
513644762.84471
Area
2.0994999311601E+16
Volume
2.2884298149454E+24
Surface area
8.3979997246406E+16
Circumference
513644762.84471
Perimeter
326996412
Area
6682915841304609
Diagonal
115610690.17444
Surface area
40097495047827654
Volume
5.4632237545114E+23
Space diagonal
141593599.86918
Perimeter
245247309
Area
2.8937874449616E+15
Altitude
70796799.934591
Surface area
2.8937874449616E+15
Volume
6.4384709399241E+22
Height
38536896.724812