72991009 is an odd 8-digits composite number following 72991008
and preceding 72991010 . In scientific notation, it is written as 7.2991009 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 57415680 positive integers (up to 72991009) that are relatively prime to 72991009.
72991009 has 16 divisors, whose sum is 90357120
The reverse of 72991009 is 90019927
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
seventy-two million nine hundred ninety-one thousand nine
Scientific notation
7.2991009 × 10^7
Engineering notation
7.2991009 × 10^6
Prime Factorization
7 × 13 × 179 × 4481
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
72991009
Product of the distinct prime numbers
The prime factorization of 72991009 is 7 × 13 × 179 × 4481.
Since it has a total of 4 prime factors.
4 , 5 , 51 , 66 , 419 , 456 , 5801 , 8757 , 56722 , 33322 , 615105 , 218600 , 9467205 , 559384 , 19327328 , 80987643 , 752770452 , 587938952 , 4725201557 , 9752821178
n×2
145982018
n×3
218973027
n×4
291964036
n×5
364955045
n÷2
36495504.5
n÷3
24330336.333333
n÷3
18247752.25
n÷5
14598201.8
n2
5327687394838081
n3
3.8887327858581E+23
n4
2.8384252977117E+31
n5
2.071795264511E+39
2 √n
8543.4775706383
3 √n
417.91676074245
4 √n
92.43093405694
5 √n
37.381254620996
1 , 7 , 13 , 91 , 179 , 1253 , 2327 , 4481 , 16289 , 31367 , 58253 , 407771 , 802099 , 5614693 , 10427287 , 72991009
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
-72991008
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 72991009 can be divided by 16 positive divisors.
The sum of these divisors (counting 72991009) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010110011100000100100001
3
Ternary
12002100022211201
4
Quaternary
10112130010201
5
Quinary
122141203014
6
Senary
11124241201
8
Octal
426340441
10
Decimal
72991009
12
Duodecimal
20540201
16
Hexadecimal
459c121
20
Vigesimal
12g3ha9
36
Base36
17gg81
md5
011d8d489be0cd849372588219706d71
sha1
a38cfc92a24817d1daccbe804f8017f1f79fdf79
sha256
0b34e2505de7d464b39bfcfb5777452684bef2dc872d77fbff4da9e0a79bc48e
sha512
ac6b67d4f19a1869428caaf56e6a0e2fc40569a40eebb8e299492d003acf13a9e6e879870c0c6a50697cdcaf9c5321213a5c51145391c93d28c53656941a8082
ripemd-160
2144a8b893319e967e41adddb1e89c8533abb5d5
Diameter
145982018
Circumference
458616035.30501
Area
1.6737423580246E+16
Volume
1.6289085802434E+24
Surface area
6.6949694320985E+16
Circumference
458616035.30501
Perimeter
291964036
Area
5327687394838081
Diagonal
103224874.8591
Surface area
31966124369028486
Volume
3.8887327858581E+23
Space diagonal
126424136.08372
Perimeter
218973027
Area
2.306956313676E+15
Altitude
63212068.041859
Surface area
2.306956313676E+15
Volume
4.5829155385046E+22
Height
34408291.619699