81639103 is an odd 8-digits composite number following 81639102
and preceding 81639104 . In scientific notation, it is written as 8.1639103 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 64593504 positive integers (up to 81639103) that are relatively prime to 81639103.
81639103 has 8 divisors, whose sum is 100479008
The reverse of 81639103 is 30193618
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million six hundred thirty-nine thousand one hundred three
Scientific notation
8.1639103 × 10^7
Engineering notation
8.1639103 × 10^6
Prime Factorization
7 × 13 × 897133
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81639103
Product of the distinct prime numbers
The prime factorization of 81639103 is 7 × 13 × 897133.
Since it has a total of 3 prime factors.
7 , 1 , 45 , 22 , 147 , 906 , 5801 , 9083 , 83248 , 67822 , 462607 , 675379 , 3386415 , 996324 , 37718847 , 82070042 , 282327267 , 819906413 , 8034592331 , 9072715668
n×2
163278206
n×3
244917309
n×4
326556412
n×5
408195515
n÷2
40819551.5
n÷3
27213034.333333
n÷3
20409775.75
n÷5
16327820.6
n2
6664943138644609
n3
5.4411997938495E+23
n4
4.4421467041366E+31
n5
3.6265287232012E+39
2 √n
9035.4359607049
3 √n
433.80984931033
4 √n
95.054910239845
5 √n
38.227829897742
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81639102
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81639103 can be divided by 8 positive divisors.
The sum of these divisors (counting 81639103) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111011011011010111111
3
Ternary
12200121200210111
4
Quaternary
10313123122333
5
Quinary
131344422403
6
Senary
12033450451
8
Octal
467333277
10
Decimal
81639103
12
Duodecimal
23410a27
16
Hexadecimal
4ddb6bf
20
Vigesimal
15a4hf3
36
Base36
1clt4v
md5
eab2499708693addaec062786baae668
sha1
c6d21f89fab4d2ff464139415c81b43329120711
sha256
eb6209630dc1b6f7d41313c9d9dbe441cf4b71912d76a10f097faef426058f09
sha512
c99a19e77938ae9df7cd3074306909cb7a506bd14a3bb44a3345adb0ea580b4a7cc90fe7795bc8e53eb9702e79eabec0613466d03716f0908abcbd5bf2e164f0
ripemd-160
6986442115e8a3e57f2da0d122b9083ec7634462
Diameter
163278206
Circumference
512953612.46092
Area
2.093853640096E+16
Volume
2.2792044398763E+24
Surface area
8.3754145603838E+16
Circumference
512953612.46092
Perimeter
326556412
Area
6664943138644609
Diagonal
115455126.68257
Surface area
39989658831867654
Volume
5.4411997938495E+23
Space diagonal
141403074.28035
Perimeter
244917309
Area
2.8860050364225E+15
Altitude
70701537.140174
Surface area
2.8860050364225E+15
Volume
6.4125154533697E+22
Height
38485042.227525