72649281 is an odd 8-digits composite number following 72649280
and preceding 72649282 . In scientific notation, it is written as 7.2649281 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 48432852 positive integers (up to 72649281) that are relatively prime to 72649281.
72649281 has 4 divisors, whose sum is 96865712
The reverse of 72649281 is 18294627
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
seventy-two million six hundred forty-nine thousand two hundred eighty-one
Scientific notation
7.2649281 × 10^7
Engineering notation
7.2649281 × 10^6
Prime Factorization
3 × 24216427
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72649281
Product of the distinct prime numbers
The prime factorization of 72649281 is 3 × 24216427.
Since it has a total of 2 prime factors.
3 , 10 , 96 , 86 , 445 , 932 , 45 , 3421 , 18598 , 26408 , 327117 , 499324 , 813242 , 1725999 , 14499821 , 53437258 , 59459265 , 536203459 , 6739399851 , 6743099499
n×2
145298562
n×3
217947843
n×4
290597124
n×5
363246405
n÷2
36324640.5
n÷3
24216427
n÷3
18162320.25
n÷5
14529856.2
n2
5277918029816961
n3
3.8343695004314E+23
n4
2.7856418729467E+31
n5
2.0237487919307E+39
2 √n
8523.4547573153
3 √n
417.2635418655
4 √n
92.322558225578
5 √n
37.346186709417
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
-72649280
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 72649281 can be divided by 4 positive divisors.
The sum of these divisors (counting 72649281) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010101001000101001000001
3
Ternary
12001200222002010
4
Quaternary
10111020221001
5
Quinary
122044234111
6
Senary
11113043133
8
Octal
425105101
10
Decimal
72649281
12
Duodecimal
203b64a9
16
Hexadecimal
4548a41
20
Vigesimal
12e1341
36
Base36
1794jl
md5
127a4e3245fc52818c6e2a3a510101fb
sha1
f057da407a0c629d93311604973003197a8174d8
sha256
e2b55235240a1e682b65fed715b1e92f1d4848113c318df4544839f43d02c41a
sha512
7e3979820d371550d8b3e3e1e28ffc85918f04fd7d7a5df959ad5f5e171ec2d45952bc1e847b6d2b791d34d9f64b9397cb944fd225e937a8ebc4f94158baac95
ripemd-160
de7651d8dbcd61331a6ac4e5b7ea3920fe2b237b
Diameter
145298562
Circumference
456468894.95636
Area
1.6581068508722E+16
Volume
1.6061369404939E+24
Surface area
6.6324274034888E+16
Circumference
456468894.95636
Perimeter
290597124
Area
5277918029816961
Diagonal
102741598.48685
Surface area
31667508178901766
Volume
3.8343695004314E+23
Space diagonal
125832245.82535
Perimeter
217947843
Area
2.2854055464567E+15
Altitude
62916122.912674
Surface area
2.2854055464567E+15
Volume
4.5188477922165E+22
Height
34247199.495618