72161838 is an even 8-digits composite number following 72161837
and preceding 72161839 . In scientific notation, it is written as 7.2161838 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors.
There are 19042560 positive integers (up to 72161838) that are relatively prime to 72161838.
72161838 has 32 divisors, whose sum is 126846720
The reverse of 72161838 is 83816127
Previous prime number is 59
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
seventy-two million one hundred sixty-one thousand eight hundred thirty-eight
Scientific notation
7.2161838 × 10^7
Engineering notation
7.2161838 × 10^6
Prime Factorization
2 × 7 × 153 × 59 × 571
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
72161838
Product of the distinct prime numbers
The prime factorization of 72161838 is 2 × 7 × 153 × 59 × 571.
Since it has a total of 5 prime factors.
8 , 10 , 40 , 10 , 525 , 653 , 1657 , 2053 , 99337 , 85860 , 775438 , 406032 , 6025837 , 5658699 , 44292132 , 25777698 , 555857138 , 843023253 , 9354691946 , 4461367902
n×2
144323676
n×3
216485514
n×4
288647352
n×5
360809190
n÷2
36080919
n÷3
24053946
n÷3
18040459.5
n÷5
14432367.6
n2
5207330863538244
n3
3.7577056618705E+23
n4
2.7116294722358E+31
n5
1.956761666915E+39
2 √n
8494.812416999
3 √n
416.32823192082
4 √n
92.16730666022
5 √n
37.295936545404
1 , 2 , 7 , 14 , 59 , 118 , 153 , 306 , 413 , 571 , 826 , 1071 , 1142 , 2142 , 3997 , 7994 , 9027 , 18054 , 33689 , 63189 , 67378 , 87363 , 126378 , 174726 , 235823 , 471646 , 611541 , 1223082 , 5154417 , 10308834 , 36080919 , 72161838
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72161837
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72161838 can be divided by 32 positive divisors.
The sum of these divisors (counting 72161838) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100010011010001101000101110
3
Ternary
12000210012102200
4
Quaternary
10103101220232
5
Quinary
121433134323
6
Senary
11054402330
8
Octal
423215056
10
Decimal
72161838
12
Duodecimal
202003a6
16
Hexadecimal
44d1a2e
20
Vigesimal
12b04bi
36
Base36
16yofi
md5
5e334af66972a587e7ec5f204258a41e
sha1
b2f3bac99ab1cfebd5bd9c0763bdb45aeeb2ffb0
sha256
13be1a06ae07513c925325f5cd8c08d65a98d12d421010e877ece4080ec39e9a
sha512
8408fe3c53d86d2f6698e2a1e640d44d160e831a28ae7066c8a0a25a193b042ca75b95d972576372c5a7a98957bad82af01a7278f98e4e0d1a11617f8df6fce7
ripemd-160
0bed52260c5d3bbb132601253812bb74fa5c3ea6
Diameter
144323676
Circumference
453406200.26067
Area
1.6359312385703E+16
Volume
1.5740240668913E+24
Surface area
6.5437249542813E+16
Circumference
453406200.26067
Perimeter
288647352
Area
5207330863538244
Diagonal
102052249.98537
Surface area
31243985181229464
Volume
3.7577056618705E+23
Space diagonal
124987969.78355
Perimeter
216485514
Area
2.2548404068674E+15
Altitude
62493984.891777
Surface area
2.2548404068674E+15
Volume
4.4284985920195E+22
Height
34017416.66179