72181870 is an even 8-digits composite number following 72181869
and preceding 72181871 . In scientific notation, it is written as 7.2181870 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 27877024 positive integers (up to 72181870) that are relatively prime to 72181870.
72181870 has 16 divisors, whose sum is 134408160
The reverse of 72181870 is 07818127
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
seventy-two million one hundred eighty-one thousand eight hundred seventy
Scientific notation
7.2181870 × 10^7
Engineering notation
7.2181870 × 10^6
Prime Factorization
2 × 5 × 29 × 248903
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
72181870
Product of the distinct prime numbers
The prime factorization of 72181870 is 2 × 5 × 29 × 248903.
Since it has a total of 4 prime factors.
1 , 10 , 99 , 98 , 639 , 858 , 4437 , 4499 , 72393 , 23665 , 417902 , 798337 , 1535643 , 2853505 , 35478405 , 79187453 , 882042125 , 188647794 , 7074072809 , 5886381288
n×2
144363740
n×3
216545610
n×4
288727480
n×5
360909350
n÷2
36090935
n÷3
24060623.333333
n÷3
18045467.5
n÷5
14436374
n2
5210222356696900
n3
3.7608359282219E+23
n4
2.7146417006224E+31
n5
1.9594791433091E+39
2 √n
8495.9914077169
3 √n
416.36675235294
4 √n
92.173702365246
5 √n
37.298006972867
1 , 2 , 5 , 10 , 29 , 58 , 145 , 290 , 248903 , 497806 , 1244515 , 2489030 , 7218187 , 14436374 , 36090935 , 72181870
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72181869
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72181870 can be divided by 16 positive divisors.
The sum of these divisors (counting 72181870) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010011010110100001101110
3
Ternary
12000211012220121
4
Quaternary
10103112201232
5
Quinary
121434304440
6
Senary
11055035154
8
Octal
423264156
10
Decimal
72181870
12
Duodecimal
2020baba
16
Hexadecimal
44d686e
20
Vigesimal
12b2eda
36
Base36
16z3vy
md5
bd02b017d86bccf6d50ffd0a5321a357
sha1
13d74966fb7c9bf883feb0bee49013bbe7b6d31a
sha256
3cfe38440c591114ffe278e8a2270a704e762ec4b6f8b6fc0058e3c6e76d38ea
sha512
6c017c4b41ddf3161aa5e902789a79694933e6e070b7dc7c6ef34a318f6974c34e1c76ab92deccec7d651a022f2ba320ebcac84f22c08342933714c531a6e52a
ripemd-160
b874fc814442daf8e6f82e23d019c09e6470fadc
Diameter
144363740
Circumference
453532065.02875
Area
1.6368396279368E+16
Volume
1.5753352697945E+24
Surface area
6.5473585117473E+16
Circumference
453532065.02875
Perimeter
288727480
Area
5210222356696900
Diagonal
102080579.51145
Surface area
31261334140181400
Volume
3.7608359282219E+23
Space diagonal
125022666.22533
Perimeter
216545610
Area
2.2560924601326E+15
Altitude
62511333.112666
Surface area
2.2560924601326E+15
Volume
4.4321876462928E+22
Height
34026859.837151