81189629 is an odd 8-digits composite number following 81189628
and preceding 81189630 . In scientific notation, it is written as 8.1189629 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 81148320 positive integers (up to 81189629) that are relatively prime to 81189629.
81189629 has 4 divisors, whose sum is 81230940
The reverse of 81189629 is 92698118
Previous prime number is 2069
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighty-one million one hundred eighty-nine thousand six hundred twenty-nine
Scientific notation
8.1189629 × 10^7
Engineering notation
8.1189629 × 10^6
Prime Factorization
2069 × 39241
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81189629
Product of the distinct prime numbers
The prime factorization of 81189629 is 2069 × 39241.
Since it has a total of 2 prime factors.
3 , 7 , 1 , 28 , 410 , 705 , 9065 , 2754 , 62166 , 39891 , 740503 , 390277 , 5286824 , 9757290 , 99794575 , 43678812 , 746109872 , 982051943 , 6361450123 , 5432206033
n×2
162379258
n×3
243568887
n×4
324758516
n×5
405948145
n÷2
40594814.5
n÷3
27063209.666667
n÷3
20297407.25
n÷5
16237925.8
n2
6591755857157641
n3
5.3518221250121E+23
n4
4.3451245280372E+31
n5
3.5277904839014E+39
2 √n
9010.528785815
3 √n
433.01225281657
4 √n
94.923805158743
5 √n
38.185643297408
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
-81189628
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 81189629 can be divided by 4 positive divisors.
The sum of these divisors (counting 81189629) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101101101101011111101
3
Ternary
12122202212020022
4
Quaternary
10311231223331
5
Quinary
131241032004
6
Senary
12020101525
8
Octal
465555375
10
Decimal
81189629
12
Duodecimal
232348a5
16
Hexadecimal
4d6dafd
20
Vigesimal
1578e19
36
Base36
1cc6bh
md5
1eb807253ef66768c3d23f5f5d617d9e
sha1
bf51fdd90cbe1390831fe4ecb32066fec35e1e19
sha256
d47ff24006486bbc1244e0d034d21e9ea3a316ffd8ed365cb00a08fc13a635e9
sha512
f4504870800a72619283f996bf99b8d0f056e1bb207ced87bb874d251aa2b8800f6ac96ea437642ac16e46b76cb9ebbb35274f69ab8360e079580d35f99c2860
ripemd-160
11d2329a90b76b4f5e3488242a86f8ea459851ec
Diameter
162379258
Circumference
510129484.02816
Area
2.0708611775104E+16
Volume
2.241766009501E+24
Surface area
8.2834447100416E+16
Circumference
510129484.02816
Perimeter
324758516
Area
6591755857157641
Diagonal
114819474.45584
Surface area
39550535142945846
Volume
5.3518221250121E+23
Space diagonal
140624562.47567
Perimeter
243568887
Area
2.8543140139217E+15
Altitude
70312281.237834
Surface area
2.8543140139217E+15
Volume
6.3071828605004E+22
Height
38273158.151947