72742421 is an odd 8-digits composite number following 72742420
and preceding 72742422 . In scientific notation, it is written as 7.2742421 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 72691500 positive integers (up to 72742421) that are relatively prime to 72742421.
72742421 has 4 divisors, whose sum is 72793344
The reverse of 72742421 is 12424727
Previous prime number is 1471
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
seventy-two million seven hundred forty-two thousand four hundred twenty-one
Scientific notation
7.2742421 × 10^7
Engineering notation
7.2742421 × 10^6
Prime Factorization
1471 × 49451
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72742421
Product of the distinct prime numbers
The prime factorization of 72742421 is 1471 × 49451.
Since it has a total of 2 prime factors.
7 , 9 , 2 , 71 , 81 , 956 , 4267 , 4502 , 70440 , 20335 , 507531 , 767767 , 1169072 , 4227460 , 34842859 , 97258890 , 369604002 , 646601762 , 3924048940 , 237219008
n×2
145484842
n×3
218227263
n×4
290969684
n×5
363712105
n÷2
36371210.5
n÷3
24247473.666667
n÷3
18185605.25
n÷5
14548484.2
n2
5291459812941241
n3
3.8491359741755E+23
n4
2.7999546951972E+31
n5
2.0367548321896E+39
2 √n
8528.9167541957
3 √n
417.44178326985
4 √n
92.352134540549
5 √n
37.355757737095
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
-72742420
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 72742421 can be divided by 4 positive divisors.
The sum of these divisors (counting 72742421) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010101011111011000010101
3
Ternary
12001212200211202
4
Quaternary
10111133120111
5
Quinary
122110224141
6
Senary
11115042245
8
Octal
425373025
10
Decimal
72742421
12
Duodecimal
20440385
16
Hexadecimal
455f615
20
Vigesimal
12ecg11
36
Base36
17b4et
md5
97308a8b7905b6084dc48af4c7b5b0ca
sha1
9688580c5db7d99dcfc2f8c6418eef9dee120a0e
sha256
91b6c29ba135e5bcbd76985a532c84d96733a6e760e5c38784cc0ade0972ab85
sha512
81d81c71b88088cdde8b695600f4135faec84ceac345e696478924e8eceb85435631ff1c5918e78dff67480a9af1bf04d21625da8d1b311b57f9ef6a9509a5ce
ripemd-160
71435b7276bd60551c37b63880fdab673efec66b
Diameter
145484842
Circumference
457054110.83587
Area
1.6623611275102E+16
Volume
1.6123223065517E+24
Surface area
6.6494445100407E+16
Circumference
457054110.83587
Perimeter
290969684
Area
5291459812941241
Diagonal
102873318.33805
Surface area
31748758877647446
Volume
3.8491359741755E+23
Space diagonal
125993569.03757
Perimeter
218227263
Area
2.2912693105558E+15
Altitude
62996784.518783
Surface area
2.2912693105558E+15
Volume
4.5362502484143E+22
Height
34291106.112684