72161780 is an even 8-digits composite number following 72161779
and preceding 72161781 . In scientific notation, it is written as 7.2161780 × 10^7.
The sum of its digits is 32. It has a total of 5 prime factors and 24 positive divisors.
There are 28391040 positive integers (up to 72161780) that are relatively prime to 72161780.
72161780 has 24 divisors, whose sum is 154026600
The reverse of 72161780 is 08716127
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
seventy-two million one hundred sixty-one thousand seven hundred eighty
Scientific notation
7.2161780 × 10^7
Engineering notation
7.2161780 × 10^6
Prime Factorization
2 × 2 × 5 × 61 × 59149
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
36080890
Product of the distinct prime numbers
The prime factorization of 72161780 is 2 × 2 × 5 × 61 × 59149.
Since it has a total of 5 prime factors.
9 , 4 , 31 , 22 , 894 , 47 , 5095 , 8933 , 55240 , 86284 , 791278 , 650388 , 6915803 , 7583517 , 74121538 , 81401562 , 239578361 , 178432780 , 3089582438 , 3464222567
n×2
144323560
n×3
216485340
n×4
288647120
n×5
360808900
n÷2
36080890
n÷3
24053926.666667
n÷3
18040445
n÷5
14432356
n2
5207322492768400
n3
3.757696601122E+23
n4
2.7116207543692E+31
n5
1.9567538032022E+39
2 √n
8494.8090031501
3 √n
416.32812037967
4 √n
92.167288140371
5 √n
37.295930550088
1 , 2 , 4 , 5 , 10 , 20 , 61 , 122 , 244 , 305 , 610 , 1220 , 59149 , 118298 , 236596 , 295745 , 591490 , 1182980 , 3608089 , 7216178 , 14432356 , 18040445 , 36080890 , 72161780
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72161779
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72161780 can be divided by 24 positive divisors.
The sum of these divisors (counting 72161780) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100010011010001100111110100
3
Ternary
12000210012100112
4
Quaternary
10103101213310
5
Quinary
121433134110
6
Senary
11054402152
8
Octal
423214764
10
Decimal
72161780
12
Duodecimal
20200358
16
Hexadecimal
44d19f4
20
Vigesimal
12b0490
36
Base36
16yodw
md5
438dbd0723f5fd32020374cba64e82f4
sha1
109edf3cdb4a5d788bea005ee9b9cbe7d374e993
sha256
c54f7e2d698694244bbf4335b9ea31dd02d7b3eb5c4fcdc94479c50805d38c08
sha512
7aab382e11cc9bf7dec6bf0c15d824de14713dad6d4d9c9d5ef6da4fa048928fb8f9b9d76ae54c7d6bc3f9de3769bbc14263cdb4e8aaa841d96cbbc8e919f6df
ripemd-160
a903e3d1d6c84c9bcadfa281a88c1a652b1d5290
Diameter
144323560
Circumference
453405835.83593
Area
1.6359286088154E+16
Volume
1.5740202715339E+24
Surface area
6.5437144352616E+16
Circumference
453405835.83593
Perimeter
288647120
Area
5207322492768400
Diagonal
102052167.96098
Surface area
31243934956610400
Volume
3.757696601122E+23
Space diagonal
124987869.32461
Perimeter
216485340
Area
2.2548367822178E+15
Altitude
62493934.662304
Surface area
2.2548367822178E+15
Volume
4.4284879138251E+22
Height
34017389.320328