72156989 is an odd 8-digits composite number following 72156988
and preceding 72156990 . In scientific notation, it is written as 7.2156989 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 72069120 positive integers (up to 72156989) that are relatively prime to 72156989.
72156989 has 4 divisors, whose sum is 72244860
The reverse of 72156989 is 98965127
Previous prime number is 829
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
seventy-two million one hundred fifty-six thousand nine hundred eighty-nine
Scientific notation
7.2156989 × 10^7
Engineering notation
7.2156989 × 10^6
Prime Factorization
829 × 87041
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72156989
Product of the distinct prime numbers
The prime factorization of 72156989 is 829 × 87041.
Since it has a total of 2 prime factors.
2 , 1 , 68 , 60 , 573 , 326 , 4803 , 3501 , 46589 , 56664 , 898991 , 772160 , 53227 , 8021312 , 73912637 , 49846936 , 553252957 , 437151988 , 7854495988 , 7152139226
n×2
144313978
n×3
216470967
n×4
288627956
n×5
360784945
n÷2
36078494.5
n÷3
24052329.666667
n÷3
18039247.25
n÷5
14431397.8
n2
5206631061546121
n3
3.7569482023504E+23
n4
2.7109007011057E+31
n5
1.9561043206978E+39
2 √n
8494.5270027236
3 √n
416.31890648939
4 √n
92.165758298424
5 √n
37.295435303023
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
-72156988
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 72156989 can be divided by 4 positive divisors.
The sum of these divisors (counting 72156989) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010011010000011100111101
3
Ternary
12000202221210002
4
Quaternary
10103100130331
5
Quinary
121433010424
6
Senary
11054324045
8
Octal
423203475
10
Decimal
72156989
12
Duodecimal
201b9625
16
Hexadecimal
44d073d
20
Vigesimal
12ajc99
36
Base36
16ykot
md5
0208e691d5b12b8866b99d95bcbb966a
sha1
95983af925b927174cf6e8b08ab4efe13d6e251b
sha256
bec773060a82a4e859b28a1fad8fb2cdcf2591a1a1e9dc872e69fa9fc5f15b3e
sha512
e88534a2e803b24bd1564713948e7c28c36217951ee87639265169d150406a522ca30554a5cdad4d9fea431c3ce13d2f3f5f0b2af9b9b3eacc63187c9614d2c9
ripemd-160
ca761ca58f0f1b3dc238ccc4eb241bf2221fdf0f
Diameter
144313978
Circumference
453375733.09512
Area
1.6357113892906E+16
Volume
1.5737067829895E+24
Surface area
6.5428455571623E+16
Circumference
453375733.09512
Perimeter
288627956
Area
5206631061546121
Diagonal
102045392.46381
Surface area
31239786369276726
Volume
3.7569482023504E+23
Space diagonal
124979571.06919
Perimeter
216470967
Area
2.254537383716E+15
Altitude
62489785.534594
Surface area
2.254537383716E+15
Volume
4.4276059174143E+22
Height
34015130.821269