72090909 is an odd 8-digits composite number following 72090908
and preceding 72090910 . In scientific notation, it is written as 7.2090909 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 43691400 positive integers (up to 72090909) that are relatively prime to 72090909.
72090909 has 8 divisors, whose sum is 87383040
The reverse of 72090909 is 90909027
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
seventy-two million ninety thousand nine hundred nine
Scientific notation
7.2090909 × 10^7
Engineering notation
7.2090909 × 10^6
Prime Factorization
9 × 11 × 728191
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72090909
Product of the distinct prime numbers
The prime factorization of 72090909 is 9 × 11 × 728191.
Since it has a total of 3 prime factors.
7 , 10 , 69 , 17 , 413 , 703 , 7614 , 8766 , 81960 , 94596 , 434010 , 239297 , 6116300 , 5357361 , 17557858 , 18494634 , 524756358 , 970787069 , 8543771758 , 4753003755
n×2
144181818
n×3
216272727
n×4
288363636
n×5
360454545
n÷2
36045454.5
n÷3
24030303
n÷3
18022727.25
n÷5
14418181.8
n2
5197099160446281
n3
3.7466360263971E+23
n4
2.7009839683511E+31
n5
1.9471638947286E+39
2 √n
8490.6365485751
3 √n
416.19178202639
4 √n
92.144650135399
5 √n
37.288601909152
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72090908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72090909 can be divided by 8 positive divisors.
The sum of these divisors (counting 72090909) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010011000000010100011101
3
Ternary
12000122121010200
4
Quaternary
10103000110131
5
Quinary
121423402114
6
Senary
11053054113
8
Octal
423002435
10
Decimal
72090909
12
Duodecimal
20187339
16
Hexadecimal
44c051d
20
Vigesimal
12ab759
36
Base36
16x5p9
md5
51ea9b0f3cabe3f22487725c79713c18
sha1
54d3766ec95d165e4d83d1e2afb3d37f160780b5
sha256
556d8639a8576520b526ebcf0741d5363a62624f89541def83feeffd0755b789
sha512
75d1e086e6c87a7ba2079b62ae94bda17b9dd7d95bc6fc169874bf6455f497fc9d7be2352d7d8459adcf2abaed07bd72d60f2a763acb60bebc64010edebf11aa
ripemd-160
377e77b946671bb22045017cef87ed2179a05915
Diameter
144181818
Circumference
452960540.21002
Area
1.6327168542436E+16
Volume
1.5693872288272E+24
Surface area
6.5308674169743E+16
Circumference
452960540.21002
Perimeter
288363636
Area
5197099160446281
Diagonal
101951941.2316
Surface area
31182594962677686
Volume
3.7466360263971E+23
Space diagonal
124865117.15182
Perimeter
216272727
Area
2.2504099494666E+15
Altitude
62432558.575912
Surface area
2.2504099494666E+15
Volume
4.4154529015053E+22
Height
33983980.410535