72181814 is an even 8-digits composite number following 72181813
and preceding 72181815 . In scientific notation, it is written as 7.2181814 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 36090906 positive integers (up to 72181814) that are relatively prime to 72181814.
72181814 has 4 divisors, whose sum is 108272724
The reverse of 72181814 is 41818127
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
seventy-two million one hundred eighty-one thousand eight hundred fourteen
Scientific notation
7.2181814 × 10^7
Engineering notation
7.2181814 × 10^6
Prime Factorization
2 × 36090907
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72181814
Product of the distinct prime numbers
The prime factorization of 72181814 is 2 × 36090907.
Since it has a total of 2 prime factors.
6 , 8 , 67 , 63 , 589 , 377 , 5179 , 2147 , 76810 , 32078 , 149443 , 723331 , 4820849 , 6409006 , 64465279 , 21647820 , 271306935 , 417836162 , 7003712521 , 6213072781
n×2
144363628
n×3
216545442
n×4
288727256
n×5
360909070
n÷2
36090907
n÷3
24060604.666667
n÷3
18045453.5
n÷5
14436362.8
n2
5210214272330596
n3
3.7608271750551E+23
n4
2.7146332763597E+31
n5
1.9594715423241E+39
2 √n
8495.9881120444
3 √n
416.36664467796
4 √n
92.173684487734
5 √n
37.298001185571
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
-72181813
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 72181814 can be divided by 4 positive divisors.
The sum of these divisors (counting 72181814) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010011010110100000110110
3
Ternary
12000211012211112
4
Quaternary
10103112200312
5
Quinary
121434304224
6
Senary
11055035022
8
Octal
423264066
10
Decimal
72181814
12
Duodecimal
2020ba72
16
Hexadecimal
44d6836
20
Vigesimal
12b2eae
36
Base36
16z3ue
md5
2030b94ecd38c5bfa905d1ecc2a319e8
sha1
0b4f3ad79128ac7d4150db62fc84ce0fc0db77dc
sha256
6c7d41c21be86d34a06d48edf63fcbdfcfa760f6c49dd8497ebdadc3f4b19f25
sha512
3bcf0446ece72670c1f5eb0026b9e996826e1ba680ad3bb8d635ee1279f3c78029c7ab650eaf0961a89992d683f2ba3cb291db306bb07cf22f45bf9fe3e46749
ripemd-160
118ee78238ebcffb53a0190332084eb0db80b52f
Diameter
144363628
Circumference
453531713.17037
Area
1.6368370881582E+16
Volume
1.5753316032765E+24
Surface area
6.547348352633E+16
Circumference
453531713.17037
Perimeter
288727256
Area
5210214272330596
Diagonal
102080500.31549
Surface area
31261285633983576
Volume
3.7608271750551E+23
Space diagonal
125022569.23049
Perimeter
216545442
Area
2.2560889594993E+15
Altitude
62511284.615243
Surface area
2.2560889594993E+15
Volume
4.4321773305869E+22
Height
34026833.438497